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XLV International Symposium on Multiparticle Dynamics
chaired by S. Bethke (Max Planck Institute für Physik), Stefan Kluth (MPI für Physik)
from
to
(Europe/Berlin)
Description 
Photo: HannsSeidelStiftung
The International Symposia on Multiparticle Dynamics (ISMD) are a series of major international highenergy physics conferences for theorists and experimentalists from three different but related communities (high energy, heavy ion and astroparticle physics), with a common interest in reactions involving a large number of particles in the final state. The XLV International Symposium on Multiparticle Dynamics ISMD 2015 will be held in Wildbad Kreuth (Germany) and is organized by MPP. It will consist of experimental and theoretical plenary talks spread over 5 days. The goal is to provide a pleasant and stimulating environment for presentation and discussion of recent experimental results as well as new developments in theory. Attendance is limited to about 100 participants. 
Material: 
Go to day

 07:30  09:00 Breakfast

08:00  09:00
Registration
Conference secretariat Seminarraum 4

09:00  09:15
Welcome
Material: slides 
09:10  12:32
Multiparticle Correlations and Fluctuations: All talks are scheduled expecting 2 minutes for discussion.
Conveners: Dr. Andy Buckley (University of Glasgow), Dr. Edward SarkisyanGrinbaum (University of Texas at Arlington and CERN) 
09:15
Results on minimum bias interactions, underlying event and particle production, and BoseEinstein correlations from ATLAS
17'
Measurements of the properties of charged particle production are presented from protonproton collisions at different centreofmass energies in the range of 0.9 to 13 TeV and compared to various Monte Carlo event generator models. Furthermore particle distributions sensitive to the underlying event in protonproton collisions have been measured and are compared to theoretical models. The production properties of mesons and baryons are presented and compared to predictions. The effects of spacetime geometry in the hadronization phase has been studied in the context of BoseEinstein correlations between charged particles, for determining the size and shape of the source from which particles are emitted and for interpreting of quark confinement effects. BoseEinstein correlation parameters are investigated in pp collisions at 900 GeV and 7 TeV, up to very high chargedparticle multiplicities.
Sprecher: Yuri KOULTCHITSKI (Head of Sector) Material: Paper Slides 
09:32
Underlying event and correlation results from CMS
17'
The underlying event activity in pp collisions, measured using events with a leading charged particle or a leading charged particle jet, lends credence to multiparton interactions. The activity is measured independently in the two halves of the region transverse to the leading object, containing the maximum and minimum activities. Complementary to the underlying event analysis, the observation of longrange twoparticle correlations in high energy heavy ion collisions opens opportunities to explore novel QCD dynamics in quark gluon plasma (QGP), the hot dense matter created in heavy ion collisions. We present selected results of the underlying event activity and particle correlations in various collision systems.
Sprecher: Mr. Wei Yang Wang (National University of Singapore (NUS)) Material: Paper Slides 
09:49
Eventbyevent fluctuation and correlation measurements at the LHC energies in ALICE
17'
Eventbyevent fluctuations in relativistic heavyion collisions may reveal important information about the QCD phase transition and can be used for characterizing the hot and dense system formed in heavyion collisions. Fluctuations of many observables are associated with thermodynamic quantities of the strongly interacting system. The eventbyevent fluctuations of the mean transverse momentum, temperature, multiplicity and netcharges are related to the fundamental properties of the system. In this presentation, we will discuss the recent results from ALICE experiment on eventbyevent fluctuations and particle correlations at LHC energies for PbPb, pPb and pp collisions. Along with that the results of balance functions analysis at LHC energy will be shown. We will also make comparisons to the measurements at lower beam energies from different experiments and discuss the prospect for these studies at LHC energies.
Sprecher: Mr. Sumit BASU (on behalf of the ALICE collaboration) Material: Slides 
10:06
The Study of Two Antiproton Interaction via Correlation Measurement at STAR
16'
The twoparticle correlation at small relative momenta is influenced by the nuclear force between two particles, which has been intensively studied for nucleons or nuclei but not much for antinucleons or antinuclei. In this talk, we present the (anti)proton(anti)proton correlation function in Au+Au collisions at \sqrt{s_{NN}} = 200 GeV based on data taken by the STAR experiment at RHIC. We show the attractive nuclear force between two antiprotons, and present the measurement of the two key parameters that characterize the corresponding strong interaction, namely, the scattering length and the effective range. Our measurement serves as a useful verification of CPT symmetry. Of equal importance as a direct knowledge of the interaction among two antiprotons, the simplest system of antinucleons(nuclei), our result provides a fundamental ingredient towards understanding the structure of more sophisticated antinuclei and their properties.
Sprecher: Mr. ZHENGQIAO ZHANG (BNL) Material: Slides 
10:22
Searching for hidden sectors in multiparticle production at the LHC
16'
Most signatures of new physics beyond the Standard Model have been studied on the transverse plane with respect to the beam direction. In this work we rather consider the effect of a hidden sector (i.e. Hidden Valley model) on rapidity correlations, moments and cumulants of multiplicity distributions in multiparticle production with an special emphasis in the prospects for the forthcoming LHC results.
Sprecher: Prof. MiguelAngel SanchisLozano (IFIC, University of Valencia) Material: Paper Slides  10:38 Coffee break 30'

11:08
The taumodel of BoseEinstein correlations  recent results
16'
Some new results concerning the taumodel of BoseEinstein correlations will be presented.
Sprecher: Dr. Wesley Metzger (Radboud University) Material: Paper Slides 
11:24
Finite size of hadrons and BoseEinstein correlations in pp collisions at 7 TeV
16'
I shall report the recently published paper [PLB748(2015)9], written together with Wojtek Florkowski and Kacper Zalewski. Starting from the observation that the composite nature of hadrons implies spacetime correlations between produced particles, we studied consequences of this effect for the BoseEinstein correlation function of identical particles. The expected magnitude of these effects is evaluated using the recently performed blastwave model analysis of the data for pp collisions at √s = 7 TeV.
Sprecher: andrzej bialas (Jagellonian University, Krakow) Material: Paper Slides 
11:40
Quantum properties of QCD string fragmentation
16'
A simple quantization concept for a 3dim QCD string is used to derive properties of QCD flux tube from the mass spectrum of light mesons and to predict observable quantum effects in correlations between adjacent hadrons. The quantized fragmentation model is presented and compared with experimental observations.
Sprecher: Dr. Sharka TodorovaNova (Charles University, Prague) Material: Paper Slides 
11:56
Bayesian model comparison for onedimensional azimuthal correlations
16'
In the context of data modeling and comparisons between different fit models, Bayesian analysis calls that model best which has the largest evidence, the priorweighted integral of the likelihood function over model parameters. Evidence calculations automatically take into account both the usual chisquared measure and an Occam factor which quantifies the price for adding extra parameters. Applying Bayesian analysis to 1D projections onto azimuth of 2D angular correlations from 200 GeV AuAu collisions, we consider typical model choices including Fourier series and a Gaussian plus combinations of individual cosine components. A powerspectrum analysis is also performed. We find that models including a Gaussian component are consistently preferred over pure Fourierseries parametrizations, sometimes strongly so. For models including a Gaussian an additional cylindrical quadrupole is required in some cases but rejected for 05%central collisions. Higher harmonics are always rejected.
Sprecher: Hans Eggers (Stellenbosch University) Material: Paper Slides 
12:12
Universality of particle production and energy balance in hadronic and nuclear collisions
16'
Universality of multihadron production in AA and hadronic interactions is studied using collision energy and centrality dependencies of the measured charged particle mean multiplicity. The study uses the framework of an effectiveenergy approach combining the constituent quark picture and Landau relativistic hydrodynamics and relating hadronic and nuclear collisions. The energy dependence of the multiplicity and the pseudorapidity density of headon AA collisions are well reproduced. The multiplicity centrality dependence reveals a new scaling between the measured and estimated pseudorapidity spectra. Using this scaling, called the energy balanced limiting fragmentation scaling, all centrality spectra are described. This elucidates the difference in centrality dependence of multiplicity at RHIC and LHC and also the RHIC midrapidity density vs multiplicity. A new regime in AA collisions is indicated at ~1 TeV. Predictions are made for the multiplicities in pp and AA collisions at LHC.
Speakers: Dr. Raghunath Sahoo (IIT Indore, India), Mr. Aditya Nath Mishra (IIT INdore) Material: Paper Slides

09:15
Results on minimum bias interactions, underlying event and particle production, and BoseEinstein correlations from ATLAS
17'
 12:30  14:00 Lunch break

14:00  17:45
Diffraction and Pomeron
Conveners: Dr. Marek Tasevsky (Institute of Physics of AS CR), Dr. Roman Pasechnik (Lund University) 
14:00
Measurement of diffractive and exclusive processes with the ATLAS detector
20'
The ATLAS collaboration has carried out a study diffractive dijet production at 7 TeV pp collisions at the LHC, i.e. events with a hadronic system containing at least two jets in addition to a large region of pseudorapidity devoid of hadronic activity. The data distributions are compared with Monte Carlo models and the rapidity gap survival probability has been estimated in the kinematic region with high diffractive contribution. Prospects for exclusive jet production studies with the forward proton tagging capability of the AFP subdetector of ATLAS will be discussed. A first look at data taken jointly with the ATLAS and LHCf detectors in a p+Pb run will also be shown. In addition the measurement of the exclusive gamma+gamma > ll production crosssection in protonproton collisions at a centreofmass energy of 7 TeV has been carried out.
Sprecher: Grzegorz Gach (AGH University of Science and Technology) Material: Paper Slides 
14:20
Hard diffraction in Pythia8
15'
We present a new model for hard diffraction in Pythia8. The model uses the Pomeron approach pioneered by Ingelman and Schlein, factorising the diffractive cross section into a Pomeron flux and a Pomeron PDF, with several choices for both implemented in Pythia8. The main feature of the model is that it allows for any Pythia8 hard process to be generated diffractively, and includes an option of restricting the number of MPIs in the diffractive system to ensure survival of the rapidity gap. The new model has been used in a Monte Carlo study on diffractive dijet production from which preliminary results will be shown.
Sprecher: Ms. Christine Rasmussen (Lund University) Material: Paper Slides 
14:35
Recent CMS results regarding forward physics and diffraction
20'
Recent CMS results regarding forward physics and diffraction are reviewed. The differential diffractive cross section is measured as a function of xi= M_X^2/s in the region dominated by single dissociation (SD) and double dissociation (DD), where M_X is the mass of one of the two finalstate hadronic systems separated by the largest rapidity gap in the event. The cross section is also measured as a function of the width of the central rapidity gap in the region dominated by DD, as well as for events with a forward gap over 8.4 units of pseudorapidity. The total SD and DD cross sections are extracted. The observation of a hard colorsinglet exchange process in events with a large rapidity gap between two leading jets (jetgapjet) is reported. The fraction of jetgapjet to all dijet events is measured as a function of the second leading jet transverse momentum and the size of the pseudorapidity gap. The measured fractions are compared with predictions as well as Tevatron data. Furthermore, also the observation of exclusive Y production in pPb collisions at 5.02TeV per nucleon is reported.
Sprecher: Dr. Gabor Veres (CERN) Material: Paper Slides 
14:55
Evidence for NonExponential Elastic ProtonProton Differential CrossSection at Low t and sqrt(s) = 8 TeV by TOTEM
20'
The TOTEM experiment has made a precise measurement of the elastic protonproton differential crosssection at the centreofmass energy sqrt(s) = 8 TeV based on a highstatistics data sample obtained with the beta* = 90 optics. Both the statistical and systematic uncertainties remain below 1%, except for the tindependent contribution from the overall normalisation. This unprecedented precision allows to exclude a purely exponential differential crosssection in the range of fourmomentum transfer squared 0.027 < t < 0.2 GeV^2 with a significance greater than 7 sigma. Two extended parametrisations, with quadratic and cubic polynomials in the exponent, are shown to be well compatible with the data. In this invited talk, presented for the TOTEM Collaboration, I will also overview the present status, the recent preliminary results and the upgrade plans of the TOTEM experiment at CERN LHC.
Sprecher: Prof. Tamas Csorgo (Wigner RCP Budapest and KRF Gyongyos) Material: Paper Slides 
15:15
A model for soft interactions based on the CGC/saturation approach
15'
I discuss a model based on ColouredGlassCondensate/saturation and the BFKL Pomeron. I show that this model successfully describes the elastic, diffractive and inclusive data at LHC energies. The talk is based on material appearing in arXiv:1408.3811, arXiv:a502.05202 and arXiv: 1503.04294
Sprecher: Prof. Errol (Asher) Gotsman (Tel Aviv University) Material: Proceedings Slides 
15:30
Diffractive phenomenology and Pomeron physics at the LHC era
15'
It is shown that “soft” protonproton collisions at the LHC, from 2 TeV and beyond are dominated by Pomeron exchange. This is quantified e.g. by fitting the elastic scattering crosssection to the available (7 and 8 TeV) data, where the contribution from secondary Reggeons is shown to be smaller than the relevant experimental errors. A tiny Odderon contribution is also scrutinized and its parameters are defined. Due to Pomeron dominance, Regge factorization can be effectively used to relate e.g. double diffraction dissociation (DD) to single proton dissociation (SD) and elastic scattering. Predictions for SD and DD cross sections and their ratios for the RUN2 LHC measurements are obtained. A dipole Pomeron model of diffractions dissociation compatible with unitarity is constructed and a dip in the t dependence of SD cross section around 1 GeV is predicted.
Sprecher: Prof. Laszlo Jenkovszky (Bogolyubov ITP, Kiev) Material: Proceedings Slides  15:45 Coffee break 30'

16:15
Recent progress in exclusive and semiexclusive processes in protonproton collisions
15'
I will review recent progress in exclusive production of mesons and dileptons in protonproton collisions. This includes exclusive production of J/psi, psi' and rho^0 mesons as well as production of two pions, two leptons, two photons or two charged Higgs bosons. In the case of the charmonia a k_tfactorization method with unintegrated gluon distributions is applied. A possible sign of the onset of saturation will be given. The charmonium wave function effects will be discussed. In the case of rho^0 and pi^+ pi^ production we apply a model of tensor pomeron, a new concept being actively developed and tested in recent 2 years, to the production of continuum and resonances. A discussion of processes with electromagnetic dissociation (large rapidity gap) will be discussed as an example for dilepton production. Exclusive production of two charged Higgs boson will be discussed in the context of searches for these exotic objects at the LHC and FCC.
Sprecher: Prof. Antoni Szczurek (Institute of Nuclear Physics and Rzeszow University) Material: Paper Slides 
16:30
Central Exclusive Production in ProtonProton Collisions with the STAR Experiment at RHIC
20'
We shall describe the physics program with tagged forward protons, focusing on Central Exclusive Production (CEP) in polarized protonproton collisions at the Relativistic Heavy Ion Collider (RHIC), with the STAR detector at \sqrt{s} = 200 GeV. Preliminary results in CEP of two oppositely charged pions and kaons produced in the processes $pp\to pp \pi^+\pi^$ and $pp\to pp \K+\K^$ shall be presented. Those Double Pomeron Exchange (DPE) processes, allow the final states to be dominated by gluonic exchanges. Silicon strip detectors placed in Roman Pots were used for measuring forward protons. The preliminary results are based on the measurement of the recoil system of charged particles in the STAR experiment's Time Projection Chamber (TPC). Ionization energy loss, dE/dx, of charged particles was used for particle identification (PID). In addition to those preliminary results, the present status and future plans of the diffractive physics at RHIC shall be described.
Sprecher: Dr. Wlodek Guryn (Brookhaven National Laboratory) Material: Paper Slides 
16:50
Exclusive Central $\pi^{+}\pi^{}$ Production in Proton Antiproton Collisions at the CDF
20'
Exclusive central hadronic systems from hadron collisions result primarily from double pomeron exchange, and these have very restrictive quantum numbers: $I^{G}J^{PC}$ = $0^+ (\text{even})^{++}$. This "quantum number filter" is a powerful tool for meson spectroscopy in the isoscalar sector, especially for gluerich states. In addition it provides information on the nature of the pomeron. We have measured exclusive $\pi^{+}\pi^{}$ production in protonantiproton collisions at $\sqrt{s} = 0.9$ and 1.96 TeV in the Collider Detector at Fermilab. We selected events with exactly two oppositely charged particles, assumed to be pions, in $\eta<1.3$ with no other particles detected in $\eta < 5.9$. The central $\pi^{+}\pi^{}$ was required to have rapidity $y<1$. By requiring no other charged particles, these events are dominated by double pomeron exchange. The data is valuable for understanding the pomeron in a region of transition between nonperturbative and perturbative QCD.
Sprecher: Ms. Maria Zurek (FZ Jülich) Material: Proceedings Slides 
17:10
Recent diffractive results from HERA
20'
The exclusive dijet production in diffractive deep inelastic e+ p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 372 pb^{1}. The measurement was performed for \gamma^*p centreofmass energies in the range 90 < W < 250 GeV and photon virtualities in the range Q^2 > 25 GeV^2. Energy and transverseenergy flows around the jet axis are presented. The cross section is presented as a function of \beta, the Bjorken variable defined with respect to the diffractive exchange and, in bins of \beta, as a function of \phi, the angle between the \gamma^*dijet plane and the \gamma^*e plane in the rest frame of the dijet final state. The results are compared to predictions from models which are based on different assumptions about the nature of the diffractive exchange. The cross section of the diffractive process ep > eXp is measured at a centreofmass energy of 318 GeV, where the system X contains at least two jets and the leading final state proton p is detected in the H1 Very Forward Proton Spectrometer. The measurement is performed in photoproduction with photon virtualities Q^2<2 GeV^2 and in deepinelastic scattering with 4
Sprecher: Dr. Alice Valkarova (Institute of Particle and Nucelar Physics, Charles University) Material: Paper Slides 
17:30
Breakdown of QCD factorization in hard diffraction
15'
Production of heavy photons (DrellYan), gauge bosons, Higgs bosons, heavy flavors, which is treated within the QCD parton model as a result of hard partonparton collision, should be treated as a bremsstrahlung process seeing in the rest frame of the target. The main observation is a dramatic breakdown of diffractive QCD factorization due to the interplay between soft and hard interactions, which dominates these hard diffractive processes.
Sprecher: Prof. Boris Kopeliovich (UFTSM) Material: Paper Slides

14:00
Measurement of diffractive and exclusive processes with the ATLAS detector
20'
 18:30  20:30 Welcome reception and buffet dinner

18:30  20:30
Poster session

18:30
Colour Inside Environment
5'
V.I.Kuvshinov It is shown that in the model of stochastic QCD vacuum colour quark confinement can be described as decoherence of pure colour state of the particle into the mixed quantum state with equal probabilities for different colours as a result of density marix evolution. Quantum functions of Purity, Fidelity and Fon Neiman entropy for one and multiparticles states are calculated.
Sprecher: Prof. Viacheslav Kuvshinov (NAS) 
18:35
Jet production in the ColorFul NNLO framework
5'
In this talk I present the computer implementation of a general framework for NNLO calculations using the ColorFul NNLO subtraction scheme. This implementation identifies all singular regions automatically, assigns counter terms to them and if equipped with a phase space integrator, provides predictions for any IRsafe differential observable. The numerical framework will be illustrated through the case of 3jet production in electronpositron annihilation.
Sprecher: Dr. Adam Kardos (University of Debrecen) 
18:40
Flavor Tagging TeV Jets for BSM and QCD
5'
We present a new scheme for tagging bjets with p_T > 500 GeV called "mu_x tagging." At the LHC, the primary method to tag bjets relies on tracking their charged constituents. However, when highly boosted, trackbased btags lose efficiency, and the probability to mistag light jets rises dramatically. Using muons from B hadron decay and defining a particular combination "x" of angular information and boost estimation, we find fairly flat efficiencies to tag bjets, cjets and lightjets of e_b = 14%, e_c = 6.5%, and e_light = 0.65%, respectively. We demonstrate the usefulness of this new scheme by showing the reach for discovery of a leptophobic Z' in the dijet channel.
Sprecher: Prof. Zack Sullivan (Illinois Institute of Technology) Material: Paper 
18:45
Eventbyevent dynamical fluctuations of K/π, p/π, and K/p in PbPb collisions with ALICE
5'
Nonstatistical eventbyevent fluctuations in relativistic heavy ion collisions have been proposed as probe of phase instabilities near the QCD phase transition. The observable νdyn, which is given in terms of the moments of identifiedparticle multiplicity distributions, is used to quantify the magnitude of the dynamical fluctuations in eventbyevent measurements of given particle ratios. The ALICE detector at the LHC is well suited for the study of νdyn, due to its excellent particle identification capabilities. Particle identification that is based on the measurement of the specific ionization energy loss dE/dx works well on a statistical basis, however, suffers from ambiguities when applied on the eventbyevent level. A novel experimental technique called the "Identity Method" was recently proposed to overcome such limitations. In this contribution, we will present results for νdyn for K/π, p/π, and K/p, which applies the Identity Method to PbPb data from ALICE.
Sprecher: Mr. Sumit BASU (Variable Energy Cyclotron Centre) Material: Poster 
18:50
Status and prospects of the search for neutrinoless doublebeta decay with the CUORE experiment
5'
The CUORE experiment, expected to start operations in early 2016, will search for neutrinoless double beta decay of 130Te and will be one of the most competitive neutrinoless double beta decay experiments in the near future. Its demonstrator (CUORE0) has reported in 2015 no evidence for neutrinoless doublebeta decay and placed a lower bound on the decay halflife, T(0ν)1/2>2.7×10^24 yr at 90% C.L. The CUORE projected sensitivity is 9.5×10^25 yr at the 90% confidence level, which corresponds to an upper limit on the effective Majorana mass in the range of 50–130 meV. I will discuss the status of the CUORE experiment and give a brief update on the background rejection techniques that may significantly improve the search sensitivity of bolometric detectors to fully explore the inverted neutrino mass hierarchy.
Sprecher: Mr. Niccolo Moggi (University of Bologna) 
18:55
Recent results on lowenergy e+e annihilation into hadrons obtained using initial state radiation with the BABAR detector
5'
The BABAR Collaboration has an extensive program of studying hadronic cross sections in e+e collisions at lowenergies, which are accessible at centerofmass energy of about 10.6 GeV via initialstate radiation. Our measurements allow significant improvements in the precision of the predicted value of the muon anomalous magnetic moment. We report here the most recent results on several processes, including e+e > K_S K pi+ pi0 and e+e > K_S K pi+ eta. Each cross section is measured up to 4.5 GeV and the internal structure of the final hadronic states is studied. With the same technique we have also studied the charge asymmetry in the e+e > pi+pi and mu+mu reactions. The measured asymmetry is compared with QED predictions for muons, and theoretical models for pions. A clear interference pattern is observed for pions in the vicinity of the f_2(1270) resonance.
Sprecher: fabio anulli (INFN Sezione di Roma) 
19:00
Combined analysis of charmquark fragmentationfraction measurements
5'
A summary of measurements of the fragmentation of charm quarks into a specific hadron is given. Measurements performed in photoproduction and deep inelastic scattering in e+p, pp and e+e collisions are compared, using uptodate branching ratios. Within uncertainties, all measurements agree, supporting the hypothesis that fragmentation is independent of the specific production process. Presented averages of the fragmentation fractions significantly improved precision compared to the individual measurements. Implications of results for other physical quantities' measurements are considered.
Sprecher: Dr. Andrii Verbytskyi (MaxPlanckInstitut für Physik) Material: Poster Proceedings 
19:05
Associated quarkonium production at ATLAS as a new probe of QCD
5'
We present new measurements of the associated production of quarkonium with a vector boson or an additional quarkonium state using the ATLAS Run1 dataset. These rare processes provide new insight into QCD models of quarkonium production, but also provide new opportunities to study double parton scattering, including crosssection measurements in single and double parton scattering dominated regimes and a precise assessment of the sigma_eff parameter governing the effective spatial area of partonparton interactions at a variety of energy scales.
Sprecher: Prof. Dick Greenwood (ATLAS) 
19:10
Studying bb~ production and small angle correlations in the J/psi + mu final state
5'
We present a new measurement of BBbar hadron production at the LHC using the inclusive decay modes B(Bbar)>Jpsi+X>mumu+X and Bbar(B) >mu+X. Using this three muon final state differential cross sections are presented, giving new constraints on B hadron production kinematics in particular at small separation angles between the bb~ pair. Further corrections are also determined to allow theory comparisons directly at the B hadron level.
Sprecher: Prof. Dick Greenwood (ATLAS) 
19:15
PERSPECTIVE STUDY OF EXOTICS AND BARYONS WITH CHARM AND STRANGENESS
5'
The spectroscopy of exotics states with hidden charm together with the spectroscopy of charmed and stranged baryons is discussed. It is a good testing tool for the theories of strong interactions, including: QCD in both the perturbative and nonperturbative regimes, LQCD, potential models and phenomenological models. An understanding of the baryon spectrum is one of the primary goals of nonperturbative QCD. For this purpose an elaborated analysis of charmed hybrids and tetraquark spectrum together with spectrum of charmed and strange baryons is given. The recent experimental data are analyzed. But much more data on different decay modes are needed before firmer conclusions can be made. These data can be derived directly from the experiments using a high quality antiproton beam with momentum up to 15 GeV/c planned at FAIR and protonproton collisions with momentum up to 26 GeV/c planned at the superconducting accelerator complex NICA that is being built in Dubna nowadays.
Sprecher: Dr. Mikhail Barabanov (JINR) Material: 6 
19:20
The weighted GMD for multiplicity distributions at LHC energies
5'
A new distribution is obtained from the Generalised Multiplicity Distribution (GMD). This distribution is derived by a weighted sum of the GMD over the initial number of gluons, removing the dependence of the model on a specific initial state for QCD evolution. The distribution is shown to describe multiplicity data at various LHC energies, possibly providing information on gluon production. Comparisons are made with other multiplicity distribution models.
Sprecher: Mr. Wei Yang Wang (National University of Singapore (NUS)) Material: Paper Poster 
19:25
A convoluted Generalized Multiplicity Distribution and associated phenomenologically analogous LeeYang phase transitions
5'
A new distribution is obtained from a convolution of the Generalized Multiplicity Distribution (GMD) with the Negative Binomial Distribution (NBD). This distribution models the charged particle production from hard and soft processes, with comparisons made with other multiplicity distribution models. A phenomenologically analogous LeeYang phase transition is examined using the new model.
Sprecher: Mr. Qixiang Leong (National University of Singapore) Material: Poster 
19:30
Particle production beyond the thermal model
5'
The statistical hadronization (or thermal) model yields good results when compared to e.g. hadron production rates in LHC heavyion data. However, the distribution functions in p_T, rapidity y and eta clearly show deviations from thermal behaviour. Such nonequilibrium effects can to a certain extent be accounted for in a relativistic diffusion model with three sources  two fragmentation sources, and a midrapidity source arising from gluongluon collisions  that merges with the thermal model only for time to infinity. Given the short interaction times of AuAu at RHIC or PbPb at LHC, the fragmentation sources still contribute substantially, providing good results when compared to dN/deta distributions for produced charged hadrons from PHOBOS and ALICE, and also for asymmetric systems such as dAu at RHIC and pPb at LHC. The particle content of the sources is investigated as function of sqrt(s_NN) and found to differ substantially for central and fragmentation sources.
Sprecher: Prof. Georg Wolschin (Institut für Theoretische Physik) Material: Paper Poster 
19:35
Systematic study of real photon and DrellYan pair production in p+A (d+A) interactions
5'
We investigate nuclear effects in production of DrellYan pairs and direct photons in protonnucleus collisions. For the first time, these effects are studied within the color dipole approach using the Green function formalism which naturally incorporates the color transparency and quantum coherence effects. Numerical results for the nuclear modification factor are compared with available data. Besides, we present a variety of predictions for the nuclear suppression as function of transverse momentum pT, rapidity and invariant mass of the lepton pair that can be verified by experiments at RHIC and LHC. We found that the nuclear suppression is caused predominantly by effects of quantum coherence (shadowing corrections) and by the effective energy loss induced by multiple initial state interactions. Whereas the former dominates at small Bjorken x2 in the target, the latter turns out to be significant at large x1 in the projectile beam and is universal at different energies and pT.
Sprecher: Mr. Michal Krelina (FNSPE, Czech Technical University in Prague) Material: Paper Poster 
19:40
Nuclear effects in direct photon and DrellYan production at the LHC
5'
Using the color dipole formalism we study production of direct photons and DrellYan pairs in pA interactions. Real photons and lepton pairs produced in a hard scattering are not accompanied with any final state interaction, either energy loss or absorption. Consequently, the associated observables may serve as more efficient and cleaner probes for nuclear modification effects than inclusive hadron production. We have shown that shadowing effects in production of lepton pairs coming from the coherence are suppressed at large invariant masses and at very large pT at midrapidities. Besides, we present a systematic analysis of the nuclear effects and perform predictions for nuclear suppression as a function of pT, rapidity and dilepton invariant mass that can be verified by the LHC experiments. We include and analyze also a contribution of coherent effects associated with gluon shadowing affecting the observables predominantly at small and mediumhigh pT.
Sprecher: Dr. Victor Goncalves (Lund University/Sweden and UFPel/Brazil) Material: 5 Paper 
19:45
Two Component model for hadroproduction: from pp to heavyion collisions
5'
The transverse momentum spectra of hadrons produced in high energy collisions can be decomposed into the two components: the exponential ("thermal") and the power ("hard") ones. Thus, charged hadron spectra produced in protonproton and heavyion collisions from ISR to LHC are considered simultaneously within this model. The parameters of the model are found to vary with the type of the collision, the charged multiplicity and the measured pseudorapidity region. We discuss the possible origin of this effect, and speculate that it is linked to confinement. Moreover, the proposed model allows to extract the thermal hadron production from the whole statistical ensemble and for the case of heavyion collisions the change in the particle production dynamics is observed when reaching the critical temperature. Finally, the observed dependences are used to make predictions on the charged hadron production at LHCenergies, which are tested on already available experimental data.
Sprecher: Dr. Alexander Bylinkin (MIPT) Material: Poster 
19:50
Relativistic secondorder dissipative fluid dynamics at finite chemical potential
5'
Starting from the Boltzmann equation in the relaxation time approximation and employing a ChapmanEnskog like expansion for the distribution function close to equilibrium, we derive secondorder evolution equations for the shear stress tensor and the dissipative charge current for a system of massless quarks and gluons. The transport coefficients are obtained exactly using quantum statistics for the phase space distribution functions at nonzero chemical potential. We show that the secondorder evolution equations for the shear stress tensor and the dissipative charge current can be decoupled. We find that for large chemical potential, the charge conductivity is small compared to the coefficient of shear viscosity. Moreover, we also show that the limiting behaviour of the ratio of heat conductivity to shear viscosity is qualitatively similar to that obtained for a strongly coupled conformal plasma. [1] A. Jaiswal, B. Friman and K. Redlich, arXiv:1507.02849 [nuclth].
Sprecher: Dr. Amaresh Jaiswal (GSI Helmholtzzentrum für Schwerionenforschung) Material: Paper Poster 
19:55
Global and Local Temperature Fluctuations in High Energy Heavyion Collisions
5'
Temperature fluctuations may have two distinct origins, first, quantum fluctuations that are initial state fluctuations, and second, thermodynamical fluctuations. We discuss a method of extracting the thermodynamic temperature from the mean transverse momentum of pions, by using controllable parameters such as centrality of the system, and range of the transverse momenta. Eventbyevent fluctuations in global temperature over a large phase space provide the specific heat of the system. We present Beam Energy Scan of sp. heat from data, AMPT and HRG model prediction.The production of a large number of particles in every event, it is possible to divide the phase space into small bins and obtain local temperature for each bin. The origin of the local fluctuations has been studied with the help of eventbyevent hydrodynamic calculations, which diminishes with the elapse of time. We discuss the hydrodynamic calculations and a feasibility study at LHC using AMPT simulated data.
Sprecher: Mr. Sumit BASU (Variable Energy Cyclotron Centre) Material: Poster

18:30
Colour Inside Environment
5'

 07:30  09:00 Breakfast
 09:00  10:30 Lunch break

10:30  14:05
Astroparticle Physics
Conveners: Dmitri Semikoz (APC, Paris), Dr. Antonella Castellina (INAF and INFN) 
10:30
Searches for Dark Matters at the ATLAS experiment
20'
Searches for strongly produced dark matters in events with jets, photons, heavyflavor quarks or massive gauge bosons recoiling against large missing transverse momentum in ATLAS are presented. These “MET+X” signatures provide powerful probes to dark matter production at the LHC, allowing us to interpret results in terms of effective field theory and/or simplified models with pair production of WIMPs. Recent ATLAS results on dark matter searches at LHC Run I and the connection to astroparticle physics are discussed.
Sprecher: Dr. Henso Abreu (Israel Institute of Technology (IL)) Material: Proceedings Slides 
10:50
Extensive Air Shower and cosmic ray physics above 10^17 eV
25'
Cosmic Rays above 10^17 eV allow studying hadronic interactions at energies that can not be attained at accelerators yet. At the same time hadronic interaction models have to be applied to the cosmicray induced airshower cascades in atmosphere to infer the nature of cosmic rays. The reliability of airshower simulations has become the source of one of the largest systematic uncertainty in the interpretation of cosmicray data due to the uncertainties in modeling the hadronic interaction driving the airshower development. In this presentation a review will be done on the current understanding of the nature of cosmic rays above 10^17 eV, and on role of air showers as probes to test hadronic interaction models at energies well beyond those achieved at accelerators.
Sprecher: Prof. Mario Bertaina (University of Torino and INFN Torino) Material: Paper Slides 
11:15
Measurements at LHC an their relevance for ultrahigh energy cosmic rays
25'
Many LHC measurements have already been used to improve hadronic interaction models and thus lowered the model dependence of cosmic ray data analyses. However, the LHC still has a lot more potential to provide crucial information, which has not been fully exploited so far. Since the start of Run2 the highest accelerator beam energies are reached and no further increase can be expected for a long time. First data of Run2 are published and the fundamental performance of cosmic ray hadronic interaction models is scrutinized. The relevance of LHC data in general for cosmic ray data analyses is demonstrated. It is also shown in what aspects the current measurements are still incomplete and how they can be further improved.
Sprecher: Ralf Ulrich (KIT) Material: Slides 
11:40
Cosmic ray interaction models: an overview
25'
I shall review the stateoftheart concerning the treatment of high energy cosmic ray interactions in the atmosphere, discussing in some detail the underlying physical concepts and presenting a comparison of model results with selected accelerator data. Further, the relation of basic characteristics of hadronic interactions with the properties of nuclearelectromagnetic cascades induced by primary cosmic rays in the atmosphere will be addressed.
Sprecher: Dr. Sergey Ostapchenko (Frankfurt Institute for Advanced Studies (FIAS)) Material: Paper Slides  12:05 coffee 30'

12:35
Measurement of the muon content in air showers at the Pierre Auger Observatory
20'
The muon content of extensive air showers produced by the ultrahigh energy cosmic rays is an observable sensitive to the composition of the primary particle and to the properties of hadronic interactions driving the airshower cascade. We present different methods to estimate the muon number at the ground and the muon production depth using measurements of the longitudinal, lateral, and temporal distribution of particles in the air showers recorded by the Pierre Auger Observatory. The results, obtained at about 140TeV centerofmass energy for proton primaries, are compared to the predictions of LHCtuned hadronic interaction models for different primary masses. The models exhibit a deficit in the predicted muon content. The Pierre Auger Observatory is a hybrid detector sensitive to muons and the combination of these results with other independent mass composition analyses such as Xmax provides additional constraints on hadronic interaction models for energies beyond the LHC reach.
Sprecher: Dr. Darko Veberic (Institute for Nuclear Physics, Karlsruhe Institute of Technology) Material: Paper Slides 
12:55
Measurements of the protonair cross section with high energy cosmic ray experiments.
20'
Detecting Ultra High Energies Cosmic Rays (UHECRs) enables us to measure the protonair inelastic cross section $\sigma^{\rm inel}_{\rm pair}$ at energies that we are unable to access with particle accelerators. The protonproton cross section $\sigma_{\rm pp}$ is subsequently inferred from the protonair cross section at these energies. UHECRs experiments have been reporting on the protonair inelastic cross section starting with the Fly's Eye in 1984 at $\sqrt s = 30$~TeV and ending with the most recent result of the Telescope Array experiment at $\sqrt s = 95$~TeV in 2015. In this talk, I will present the methods and experimental results from some of these experiment.
Sprecher: Dr. Rasha Abbasi (University of Utah) Material: ProccedingPDF File Slides 
13:15
High energy neutrinos from the Cosmos: Recent results from the IceCube Neutrino Telescope
20'
The neutrino observatory IceCube is opening a new observational window to the Universe. IceCube, which has been constructed in the icecap at the South Pole, is taking data since Spring 2011 in full configuration. The first years of data reveled the existence of extremely high neutrinos at the PeV scale. The observed diffuse neutrino flux is with high probability of astrophysical origin. In this talk I will summarize the recent observation and discuss the ongoing searches for counterparts focusing in particular on the discussion of BL Lacs.
Sprecher: Prof. Elisa Resconi (Tech. University) Material: Slides 
13:35
Theoretical Interpretations of IceCube Results
20'
IceCube telescope has detected ~TeVPeV neutrinos of astrophysical origin. Currently, their origin is still unknown. In this talk, we will review the main recent theoretical explanations for these highenergy neutrinos. Both scenarios of a Galactic origin (such as the Fermi bubbles, cosmic rays in the halo, or other Galactic sources) and of an extragalactic origin (such as active galactic nuclei, starburst galaxies, or some types of supernovae) will be discussed. These results will also be presented in the context of multimessenger astronomy: We will show how observations of gammarays and cosmic rays could help disentangle between the different scenarios.
Sprecher: Dr. Gwenael Giacinti (MPIK, Heidelberg) Material: Slides

10:30
Searches for Dark Matters at the ATLAS experiment
20'

13:55  18:15
High Energy and High Pt Interactions
Conveners: Mr. Maxime Gouzevitch (IPNL, Lyon), Mr. Stefan Hoeche (SLAC National Accelerator Laboratory) 
14:00
Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP
20'
A study of QCD coherence is presented based on a sample of about 397,000 e+e hadronic annihilation events collected at sqrt{s} = 91 GeV with the OPAL detector at LEP. The study is based on four recently proposed observables that are sensitive to coherence effects in the perturbative regime. The measurement of these observables is presented, along with a comparison with the predictions of different parton shower models. The models include both conventional parton shower models and dipole antenna models. Different ordering variables are used to investigate their influence on the predictions.
Speakers: Dr. Stefan Kluth (MPI für Physik), Stefan Gieseke (KIT) Material: Paper Slides 
14:20
Recent developments in MonteCarlo Event Generators
25'
With Run II of the LHC having started, the need for high precision theory predictions whose uncertainty matches that of the data to be taken necessitated a rage of new developments in MonteCarlo Event Generators. In this talk I will give an overview of the progress in recent years in the field and what can and cannot be expected from these newly written tools.
Sprecher: Marek Schoenherr (University of Zurich) Material: Paper Slides 
14:45
Latest results on top production from the CMS and ATLAS collaborations: nclusive and differential measurements
25'
In protonproton collisions at the LHC, pairs of top and antitop quarks are expected to be mostly produced through gluon fusion and the large number of ttbar pairs can be used to test the predictions of Quantum Chromodynamics. Measurements of the top quark production cross sections in protonproton collisions at 7 and 8 TeV with the ATLAS and CMS detectors at the Large Hadron Collider are presented. Both inclusive and differential crosssection measurements are compared to the theoretical predictions. We also present measurements of the spin correlation between top and antitop quarks as well as of the topquark charge asymmetry which constitute important tests of QCD and are sensitive to potential contributions from new physics. Besides being compared to different predictions from the standard model the measurements the results are also used to extract the strong coupling constant and the pole mass.
Sprecher: Prof. Enrico Tassi (Universita' della Calabria and INFNCosenza) Material: Slides 
15:10
Supersymmetry searches at LHC in hadronic final states
25'
Despite the absence of experimental evidence, weak scale supersymmetry remains one of the best motivated and studied Standard Model extensions. This talk summarises recent ATLAS and CMS results for searches for supersymmetric (SUSY) particles, with an emphasis on strong production in both RParity conserving and RParity violating SUSY scenarios. The searches involve final states including jets, missing transverse momentum, light leptons, taus or photons. A particular emphasise will be given to the fully hadronic SUSY searches their backgrounds and problematics related to the way that they are estimated. Sensitivity projections for the data that will be collected in 2015 are also presented.
Sprecher: Sascha Caron (Nikhef and Radboud University Nijmegen) Material: Slides  16:00 Coffee Break 30'

16:30
Measurements of Vector Boson plus jets with the ATLAS and CMS detectors
25'
The production of vector bosons (V = W, Z or ?) in association with jets is a stringent test of perturbative QCD and is a background process in searches for new physics. The differential crosssection measurements measurements from CMS and ATLAS collaborations would be presented. The multijet topologies and event shape variables represent a particular interest to test multileg LO and NLO MC predictions interfaced with parton showers and study the resummation techniques.
Sprecher: Mr. Vieri Candelise (Univ. di Trieste e Sez. dell'INFN, Italy) Material: Paper Slides 
16:55
Resummed Results for Hadron Collider Observables
25'
This talk will provide a summary of progress in the resummation of observables for hadron colliders, focusing in particular on event shape observables. Event shapes and jet rates are invaluable QCD tools for theoretical calculations and experimental measurements. I will revise the definition of these observables in hadron collisions, and give a review of the stateoftheart results for their resummation. Then I will detail how recent work on the resummation of event shapes in electronpositron annihilation can allow us to extend resummation of generic hadronic event shapes to NNLL accuracy.
Sprecher: Ms. Heather McAslan (University of Sussex) Material: Paper Slides 
17:20
Studies of jet crosssections and production properties with the ATLAS and CMS detectors
25'
Several aspects of jet production in pp collisions have been measured by the ATLAS and CMS collaborations. The jet production cross sections probe the dynamics of QCD and can constrain the parton proton structure. Doubledifferential cross sections for inclusive, di, three and fourjet final states are measured at different centreofmass energies of pp collisions with the ATLAS detector and are compared to expectations based on NLO QCD calculations. The distribution of the jet charge has been measured in dijet events using pp collision data at 8 TeV with the ATLAS detector. Jetjet energy correlations are sensitive to the strong coupling constant. Measurements of multijet systems with a veto on additional jets, probe QCD radiation effects. These measurements constitute precision tests of QCD in a new energy regime. Studies of largeradius jet properties including Nsubjettines, splitting scales and other jet substructure related quantities will be presented.
Sprecher: Mr. Nuno Anjos (IFAE (Barcelona)) Material: Paper Slides 
17:45
Search for QCD InstantonInduced Processes in DIS at HERA
15'
Signals of QCD instantoninduced processes are searched for in deepinelastic scattering (DIS) at the electronproton collider HERA in the kinematic region defined by the Bjorkenscaling variable x > 10^{3}, the inelasticity 0.2< y < 0.7 and the photon virtuality 150 < Q^2 < 15000 GeV^2. The search is performed using H1 data corresponding to an integrated luminosity of ~350 pb^{1}. Several observables of the hadronic final state of the events are exploited to identify a potentially instantonenriched domain. Two Monte Carlo models, RAPGAP and ARIADNE, are used to estimate the background from the standard DIS processes, and the instantoninduced scattering processes are modeled by the program QCDINS. In order to extract the expected signal a multivariate data analysis technique is used.
Sprecher: Dr. Hayk Pirumov (DESY) Material: Slides

14:00
Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP
20'
 18:30  20:30 Dinner

 07:30  09:00 Breakfast

09:00  12:30
Collective Phenomena in High Energy Collisions
Conveners: Wojciech Florkowski (Institute of Nuclear Physics), Dr. Anton Andronic (GSI Darmstadt) 
09:00
A viscous blastwave model for high energy heavyion collisions
20'
Using a viscositybased survival scale for geometrical perturbations formed in the early stages of relativistic heavyion collisions, we model the radial flow velocity during freezeout. Subsequently, we employ the CooperFrye freezeout prescription, with firstorder viscous corrections to the distribution function, to obtain the transverse momentum distribution of particle yields and flow harmonics. For initial eccentricities, we use the results of Monte Carlo Glauber model. We fix the blastwave model parameters by fitting the transverse momentum spectra of identified particles at the Large Hadron Collider (LHC) and demonstrate that this leads to a fairly good agreement with transverse momentum distribution of elliptic and triangular flow for various centralities. Within this viscous blastwave model, we estimate the shear viscosity to entropy density ratio $\eta/s\simeq 0.24$ at the LHC. [1] A. Jaiswal and V. Koch, arXiv:1508.05878 [nuclth].
Sprecher: Dr. Amaresh Jaiswal (GSI Helmholtzzentrum für Schwerionenforschung) Material: Paper Slides 
09:20
Multiplicity dependence of strange and multistrange hadron production in pp collisions at sqrt{s} = 7 TeV measured with the ALICE experiment
20'
The measurement of identified particle production rates as a function of event activity in small colliding systems has recently become of particular interest in understanding how observations performed in these systems relate to the much larger ones created in PbPb collisions. Strangeness production may provide a valuable tool to probe changes in particle production mechanisms. We report on measurements of the transverse momentum spectra of strange hadrons in pp collisions at 7 TeV with ALICE. To investigate the possibility of collectivelike behavior, we study how the pTdifferential Lambda/K^0_S ratio is altered with multiplicity. Furthermore, strangeness production is seen to be enhanced with respect to nonstrange particles in pp collisions with progressively higher multiplicity, as evidenced by rising hyperontopion ratios. These observations are compared to similar measurements performed in pPb and PbPb collisions as well as to predictions from QCDinspired models.
Sprecher: Dr. Rafael Derradi de Souza (State University of Campinas  Brazil) Material: Slides 
09:40
Recent results from NA61/SHINE
20'
The aim of the NA61/SHINE ion programme is to explore the phase diagram of strongly interacting matter. The main physics goals are the study of the onset of deconfinement and the search for the critical point of strongly interacting matter. These goals are pursued by performing an beam momentum (13A  158A GeV/c) and system size (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La) scan. This contribution reviews results and plans of the NA61/SHINE experiment. In particular, recent inclusive spectra of identified hadrons in inelastic p+p and centrality selected Be+Be interactions at the SPS energies will be shown. The energy dependence of the signals of deconfinement, the "horn", "step" and "kink", show interesting behaviour in p+p interactions. Furthermore, the Be+Be data suggest collective flow to develop even in collisions of relatively light nuclei.
Sprecher: Mr. Emil Kaptur (University of Silesia) Material: Slides 
10:00
Overview of quarkonium production in heavyion collisions at LHC
20'
Quarkonium has been regarded as one of the golden probes for the deconfined phase transition to the quarkgluon plasma (QGP) since late 80's when the relativistic heavyion experiments started at AGS and SPS. The heavy quarkonia can be generated in gluongluon scatterings at early stage of the collision as the large momentum transfer is required. Later the binding potential between a quark and antiquark in quarkonium is screened by surrounding light quarks and antiquarks. Thus, the various quarkonium states are expected to be melt at different temperatures depending on their binding energies, which allows us to characterize the QCD phase transition. The suppression of the J/psi and Upsilon yields in Pb + Pb collisions was observed at the Large Hadron Collider (LHC). In this presentation, we review the quarkonium data at LHC, and discuss possible implications related to the propagation of quarkonia in the deconfined hot, dense matter.
Sprecher: Prof. Byungsik Hong (Korea University) Material: Paper Slides 
10:20
StrongCoupling Effects in a Plasma of Confining Gluons
20'
For the first time we investigate nonequilibrium dynamic properties of a plasma consisting of confining gluons resulting from Gribov quantization [1]. For this purpose we employ the infraredimproved Gribov dispersion relation of gluons in the kinetic theory setup in the relaxation time approximation and determine the exact in and outofequilibrium evolution of the system. In the static case the resulting equation of state of the studied system provides a good qualitative description of the pureglue lattice QCD data down to the vicinity of the phase transition [2,3,4], thus permitting a study of the nonequilibrium phenomena in a plasma that exhibits crucial features of the QCD phase transition. In the case of local thermal equilibrium we observe Bjorkenlike cooling of the boostinvariant expanding system. Out of equilibrium, by matching to the first order viscous hydrodynamics, we calculate bulk [3] and shear [5] viscosity of the system. We find significant enhancement of the bulk to shear viscosity ratio close to the transition temperature and its universal scaling behavior, in line with the one expected in a stronglycoupled theories [5]. We interpret the onset of stronglycoupled features in the system as the possible explanation of the close to perfect fluid behavior of the quarkgluon plasma. References: [1] V. Gribov, Nucl. Phys. B 139, 1 (1978) [2] D. Zwanziger, Phys. Rev. Lett. 94, 182301 (2005) [3] W. Florkowski, R. Ryblewski, N.Su, K.Tywoniuk, arXiv:1504.03176, [4] S. Borsanyi, G. Endrodi, Z. Fodor, S. D. Katz and K. K. Szabo, JHEP 1207, 056 (2012) [5] W. Florkowski, R. Ryblewski, N.Su, K.Tywoniuk, arXiv:1509.01242.
Sprecher: Wojciech Florkowski (Institute of Nuclear Physics) Material: Paper Slides  10:40 Coffee break 30'

11:10
New results on collective phenomena in small colliding systems at CMS
20'
New results of two and multiparticle correlations in pp and pPb collisions will be presented. The measurements are performed as a function of multiplicity. In veryhighmultiplicity events, a longrange nearside twoparticle correlation is observed. Azimuthal anisotropy harmonics (v_n) are extracted as a function of eta, pT and multiplicity, using two and multiparticle correlations. Identified particle v_2 and v_3 are also studied for strange hadrons. Possible physics implications of the data are discussed in the context of various theoretical models. New results of twoparticle correlations in pp collisions at 13 TeV are compared to lower energy data to study the energy dependence of longrange correlation phenomena.
Sprecher: Zhenyu Chen (CMS) Material: Slides 
11:30
LHCb results from proton ion collisions
20'
Protonlead and leadproton data taking during 2013 has allowed LHCb to expand its physics program to heavy ion physics. Results include the first forward measurement of Z production in protonlead collisions as well as a measurement of the nuclear modification factor and forwardbackward production of prompt and displaced J/psis, Psi(2S) and Upsilons. Angular particle correlations have also been measured for events of varying charged particle activity.
Sprecher: Laure Marie Massacrier (OrsayLAL) Material: Paper Slides 
11:50
DeConfinement in small systems: Clustering of color sources in high multiplicity pbarp collisions at sqrt{s}= 1.8 TeV
20'
It is shown that deconfinement can be achieved in high multiplicity non jet $\bar{p}p$ collisions at $\sqrt{s}$= 1.8 TeV Fermi National Accelerator Laboratory(FNAL E735) experiment. In this paper we use the same data but analyze the transverse momentum spectrum in the framework of the clustering of color sources. This framework naturally predicts the reduction in the charged particle multiplicity with respect to the value expected from the number of independent strings. The initial temperature and energy density are obtained from the data via the color reduction factor $F(\xi)$ and the associated string density parameter $\xi$. The energy density ($\varepsilon/T^{4}$) $\sim$ 11.5 for $ \langle dN_{c}/d\eta \rangle \sim $ 25.0 is close to the value for 010\% central events in Au+Au collisions at $\sqrt{s_{NN}}$= 200 GeV. The shear viscosity to entropy density ratio($\eta/s$) is $\sim$ 0.2 at the transition temperature of 167 MeV.
Sprecher: Prof. L Gutay (Purdue University) Material: Paper Slides 
12:10
pp minimumbias dijets and nonjet quadrupole in relation to conjectured collectivity (flows) in highenergy nuclear collisions
20'
Recent observations of ridgelike structure in pp and pA angular correlations at the RHIC and LHC are interpreted to imply collective motion in smaller systems. It is argued that if correlations representing flows in AA collisions appear in smaller systems collectivity must extend to the smaller systems. But the argument could be reversed to conclude that such structures appearing in AA collisions may not imply flows. In this talk I present spectrum, correlation and fluctuation data from RHIC pp and AuAu collisions and pp, pPb and PbPb results from the LHC described accurately by a twocomponent (soft+dijet) model of hadron production. I also present a significant pp nonjet (NJ) quadrupole (v2) component with nch systematics directly related to AA quadrupole systematics. The combined data suggest that soft, dijet and quadrupole components are independent of one another in all cases, inconsistent with hadron production from a common bulk medium exhibiting collective motion.
Sprecher: Prof. Thomas Trainor (University of Washington) Material: Paper Slides

09:00
A viscous blastwave model for high energy heavyion collisions
20'
 12:30  14:00 Lunch break

14:00  18:00
Excursion: Boat tour on the lake (Tegernsee)
14:00 assemble in front of building for conference photograph 14:15: coach departs from Wildbad Kreuth 14:45 boat leaves RottachEgern 16:15 boat returns to RottachEgern 16:30 coach leaves for Wildbad Kreuth
Location: Somewhere 
18:00
 23:00
Conference Dinner at "Gut Kaltenbrunn"
18:00 coach departure from Wildbad Kreuth 18:30 dinner 22:30 coach leaves for Wildbad Kreuth 23:00 arrival at Wildbad Kreuth

 07:30  09:00 Breakfast

09:00  13:05
Status of QCD
Conveners: Prof. Guenther Dissertori (ETH Zurich), Nora Brambilla (Technical University Munich) 
09:00
Deconfinement and Equation of State in QCD
25'
I will review the current status of equation of state calculations and deconfinement transition in 2+1 flavor QCD obtained using lattice calculations. I will discuss aspects of deconfinement related to fluctuations of conserved charges and screening of color charges in the deconfined medium using expectation value of Polyakov loop and Polyakov loop correlators.
Sprecher: Peter Petreczky (BNL) Material: Paper Slides 
09:25
Heavy quark masses from lattice QCD.
25'
I will review progress in quark mass determinations from lattice QCD simulation, focusing on results for charm and bottom mass. These are of particular interest for precision Higgs studies. Recent determinations have achieved percentlevel uncertainties with controlled systematics. Future prospects for these calculations will also be discussed.
Sprecher: Dr. Andrew Lytle (University of Glasgow) Material: Paper Slides 
09:50
Recent results on hadron structure observables using lattice QCD simulations
25'
We give an overview of recent results on hadron structure observables using lattice QCD simulations with physical values of the quark masses.
Sprecher: Alexandrou Constantia (University of Cyprus and The Cyprus Institute) Material: Slides 
10:15
Parton distribution functions and the structure of the proton: the CT14 QCD global analysis
25'
An overview on the new parton distribution functions (PDFs) up to nexttonexttoleading order (NNLO) from the CTEQTEA global analysis of quantum chromodynamics will be given. Predictions for important LHC processes, especially Higgs boson and topquark pair production at 7, 8, 13 TeV, will be presented, and main features and impact of CT14 PDFs on LHC physics will be discussed.
Sprecher: Dr. Marco Guzzi (University of Manchester) Material: Conference proceedings Slides 
10:40
Coffee Break
20'
Coffee Break

11:00
Theory status of jet physics
25'
Sprecher: Prof. Andre Hoang (Univ. of Vienna) Material: Slides 
11:25
Overview of QCD measurements at high pT
25'
This talk gives an overview of QCD measurements at high pT at the LHC and other colliders. Recent results on inclusive jet, dijet and multijet production measurements are presented together with results of alpha_S extraction and constraints on the PDFs of the proton. Precision measurements of vector bosons (V = W, Z or γ) in association with jets allow for stringent tests of perturbative QCD. The measurements are compared to nextto leading order calculations and event simulations that devise matrix element calculations interfaced with parton showers.
Sprecher: Matthias Weber (University of California Los Angeles (UCLA)) Material: Slides 
11:50
Determination of alpha_s from the QCD static energy
25'
We present the latest determination of the strongcoupling constant from the quantum chromodynamics static energy. It comes from comparing threeloop perturbative QCD with 2+1 unqueched lattice data and provides up to date one of the most accurate lowenergy determinations of alpha_s.
Sprecher: Antonio Vairo (TU Munich) Material: Paper Slides 
12:15
The 2015 World Summary of alpha_s
25'
A preliminary preview will be given on the recent update of alpha_s measurements and the new world average value of alpha_s(M_z), which is currently prepared for the 2015 edition of PDG's Review of Particle Properties.
Sprecher: Prof. S. Bethke (Max Planck Institute für Physik) Material: Paper Slides

09:00
Deconfinement and Equation of State in QCD
25'
 12:30  14:00 Lunch break

14:00  17:35
Proton Structure from ep and pp
Convener: Prof. Ingo Schienbein (LPSC Grenoble) 
14:00
Photon and photon+jet production measurements with the ATLAS detector
20'
Isolated prompt photons provide a direct probe of short distance physics, complementary to that provided by measurements of jets or vectorbosons and are sensitive to the gluon density of the proton. The inclusive prompt photon cross sections have been measured by the ATLAS collaboration at various centreofmass energies of pp collisions over a wide range of transverse momenta. These experimental results are reported in different fiducial regions covering a wide acceptance and are compared to nexttoleading order QCD calculations with different models of the parton content of the proton. The diphoton and photon+jet system cross sections have also been measured as a function of several kinematic variables.
Sprecher: Prof. Claudia Glasman (Universidad Autonoma de Madrid) Material: Slides 
14:20
Combination of Measurements of Inclusive Deep Inelastic ep Scattering Cross Sections and QCD Analysis of HERA data
25'
A combination is presented of all inclusive deep inelastic cross sections previously published by the H1 and ZEUS collaborations at HERA for neutral and charged current ep scattering for zero beam polarisation. The data correspond to an integrated luminosity of about 1 fb^1 and span six orders of magnitude in negative fourmomentumtransfer squared, Q2, and Bjorken x. The correlations of the systematic uncertainties were evaluated and taken into account for the combination. The combined cross sections were input to QCD analyses at LO, NLO and at NNLO, providing a new set of parton distribution functions, HERAPDF2.0. The analysis was extended by including HERA data on charm and jet production. The inclusion of jetproduction cross sections made a simultaneous determination of these parton distributions and the strong coupling constant possible. An extraction of xF_3(gamma Z) and results on electroweak unification and scaling violations are also presented.
Sprecher: Dr. Iris Abt (MPI) Material: Paper Slides 
14:45
PDF constraints and alpha_s from CMS
25'
Recent results on PDF constraints and alpha_s from CMS are presented
Sprecher: Dr. Maxime Gouzevitch (IPN, IN2P3CNRS, UCB Lyon 1) Material: Slides 
15:10
Studies of ATLAS measurements sensitive to the Proton Structure
25'
Several measurements performed by the ATLAS collaboration are either useful to constrain the proton structure or are affected by its associated uncertainties. Measurements of the W+c production and the inclusive W and Z differential cross sections are found to constrain the poorly known strangequark density at low x. Similarly, the ratio of W+/W production is found to constrain the valence quarks at low x. Drell Yan cross section measurements performed above and below the Z peak region have a different sensitivity to parton flavour, parton momentum fraction x and scale Q compared to measurements on the Z peak and can also be used to constrain the photon content of the proton. Measurements of the inclusive jet and photon cross sections are standard candles and can be useful to constrain the medium and high x gluon densities. Precision electroweak studies performed by ATLAS can be limited by the current knowledge on the proton structure. ...
Sprecher: Dr. Peter Bussey (Glasgow University) Material: Paper Slides  15:35 Coffee Break 30'

16:05
HERAFitter project and its related studies
20'
The uncertainties of protons parton distribution functions (PDFs) play a dominant role for the precision tests of the Standard Model (SM) and they also impact substantially the theory predictions of Beyond SM high mass production. We present theHERAFitter project which provides a unique opensource software framework for the determination of the proton's PDFs and for the interpretation of the physics analyses in the context of Quantum Chromodynamics (QCD). We report here the highlighted results based on the HERAFitter functionalities, as well as novel studies performed by HERAFitter. The latter includes the QCD analysis of the recent DrellYan production measurements at Tevatron. Reference of studies that the abstract covers are: [1] "HERAFitter Open Source QCD Fit Project", arXiv:1410.4412 [accepted by EPJC] [2] "QCD analysis of W and Zboson production at Tevatron", arXiv:1503.05221 [accepted by EPJC]
Sprecher: Hayk Pirumov (DESY) Material: Slides 
16:25
Recent progress in PDF set combinations for the LHC
20'
The current PDF4LHC recommendation to estimate uncertainties due to parton distribution functions (PDFs) in theoretical predictions for LHC processes involves the combination of separate predictions computed using PDF sets from different groups, each of which comprises a relatively large number of either Hessian eigenvectors or Monte Carlo (MC) replicas. We present a strategy for the statistical combination of individual PDF sets, followed by different reduction algorithms to end up with a small number of either Hessian eigenvectors or MC replicas. We illustrate our strategy with the combination of the recent NNPDF3.0, CT14 and MMHT14 NNLO PDF sets.
Sprecher: Dr. Andy Buckley (University of Glasgow) Material: Slides 
16:45
Combination of D* Differential CrossSection Measurements in DeepInelastic ep Scattering at HERA
20'
H1 and ZEUS have published singledifferential cross sections for inclusive D* meson production in deepinelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase space region of photon virtuality Q^2 > 5 GeV^2, electron inelasticity 0.02 < y < 0.7 and the D* meson's transverse momentum p_T (D*)> 1.5 GeV and pseudorapidity eta(D*) < 1.5. The combination procedure takes into account all relevant correlations yielding significantly reduced experimental uncertainties. To extend the kinematic range down to Q2 > 1.5 GeV^2, doubledifferential cross sections are also combined with a subset of earlier D* data. Perturbative nexttoleading order QCD predictions are compared to the results.
Sprecher: Achim Geiser (DESY Hamburg) Material: Slides 
17:05
Measurement of the Collins asymmetries for kaons and pions in e+e annihilation at BABAR
25'
Inclusive hadron production cross sections and angular distributions in e+e collisions shed light on fundamental questions of hadronization and fragmentation processes. We present measurements of the Collins azimuthal asymmetries in inclusive production of hadron pairs, in the e+e > h1 h2 X annihilation process, where the hadrons (either kaons or pions) are produced in opposite hemispheres. The data collected by the BABAR detector allow the determination of the Collins fragmentation function as a function of hadron fractional energies and transverse momenta for the up, down and strange quarks. These data can be combined with semiinclusive deepinelasticscattering data to extract the transversity distribution function, which is the least known leadingtwist component of the QCD description of the partonic structure of the nucleon.
Sprecher: Alessandra Filippi (INFN Torino) Material: Paper Slides

14:00
Photon and photon+jet production measurements with the ATLAS detector
20'
 18:30  20:00 Dinner

19:00  21:00
BOE meeting
By invitation only. Dinner will be served for BOE members during the meeting.

 07:30  09:00 Breakfast

09:00  12:30
First Results from LHC Run II
Conveners: Dr. James Robinson (DESY), Dr. Gabor Veres (CERN) 
09:00
First 13 TeV results from CMS (35'+5')
40'
An overview of the first Run II results from CMS, including 13 TeV measurements of dN/deta of charged hadrons, the dijet ridge, inclusive ttbar and single top production among others.
Sprecher: Dr. Ferenc Siklér (Wigner RCP, Budapest) Material: Paper Slides 
09:40
Early Run 2 Soft QCD Results from the ATLAS Collaboration (25'+5')
30'
Since a few months the LHC has started to deliver pp collisions at the unprecedented centreofmass energy of 13 TeV. The ATLAS collaboration has analysed this very early Run 2 data taken in both special conditions with very low pileup and those dedicated to high pT physics. This talk is an overview of soft QCD Results at 13 TeV. The properties of minimum bias interactions as well as the "underlying event" accompanying hard scatters were studied using tracks. A reasonable agreement with models tuned to lower energy data is observed. A first measurement of the total inelastic pp cross section was performed.
Sprecher: Hideyuki Oide (CERN) Material: Slides 
10:10
Early Run 2 Hard QCD Results from the ATLAS Collaboration (25'+5')
30'
Since a few months the LHC has started to deliver pp collisions at the unprecedented centreofmass energy of 13 TeV. The ATLAS collaboration has analysed this very early Run 2 data taken in both special conditions with very low pileup and those dedicated to high pT physics. This talk is an overview of hard QCD Results at 13 TeV. The production of high pT jets, photons and diphotons were studied. The inclusive jet cross section is found to agree well with the prediction of perturbative QCD calculations performed at NLO accuracy. The production cross sections for W and Z bosons in their electron and muon decays was measured. In general agreement is found with the expectation of NNLO QCD calculations and interesting sensitivities to the proton structure functions are observed already at this stage. The top production cross section, measured in different top decay channels at 13 TeV, is compared to theoretical calculations.
Sprecher: Mr. Nicola Orlando (Aristotle University of Thessaloniki) Material: Paper Slides  10:40 Coffee Break 30'

11:10
First Run 2 results from ALICE (35'+5')
40'
The ALICE Collaboration is collecting data with both Minimum Bias and Muon triggers with pp collisions at sqrt(s) = 13 TeV in the ongoing LHC Run II. An excellent performance of tracking and PID in the central barrel and in the muon spectrometer has been obtained. First results on the chargedparticle pseudorapidity density and on identified particle transverse momentum spectra at 13 TeV will be presented.
Sprecher: Dr. Alberica Toia (JohannWolfgangGoethe Univ., Frankfurt, Germany) Material: Paper Slides 
11:50
First LHCb results from pp collisions at 13 TeV (35'+5')
40'
By using the very first Run II LHC data LHCb measured the crosssections for quarkonia, beauty and charm productions. Results exploits the new "Turbo" stream procedure allowing the analysis of particle candidates selected at trigger level without the need of offline reconstruction. First results are presented.
Sprecher: Tomasz Szumlak (CracowAGH) Material: Slides

09:00
First 13 TeV results from CMS (35'+5')
40'
 12:30  14:00 Lunch break

14:00  17:00
Departure
12:00 first bus to the airport leaves 14:00 second bus to the airport leaves