Conveners
High Energy and High Pt Interactions
- Maxime Gouzevitch (IPNL, Lyon)
- Stefan Hoeche (SLAC National Accelerator Laboratory)
Presentation materials
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Stefan Gieseke
(KIT), Dr
Stefan Kluth
(MPI für Physik)
06/10/2015, 14:00
High Energy and High Pt Interactions
Oral Presentation
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...
Marek Schoenherr
(University of Zurich)
06/10/2015, 14:20
High Energy and High Pt Interactions
Oral Presentation
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 Monte-Carlo 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.
Prof.
Enrico Tassi
(Universita' della Calabria and INFN-Cosenza)
06/10/2015, 14:45
High Energy and High Pt Interactions
Oral Presentation
In proton-proton collisions at the LHC, pairs of top and anti-top 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 proton-proton
collisions at 7 and 8 TeV with the ATLAS and CMS detectors at the Large
Hadron Collider...
Sascha Caron
(Nikhef and Radboud University Nijmegen)
06/10/2015, 15:10
High Energy and High Pt Interactions
Oral Presentation
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 R-Parity conserving and R-Parity violating SUSY scenarios. The searches involve final states including...
Mr
Vieri Candelise
(Univ. di Trieste e Sez. dell'INFN, Italy)
06/10/2015, 16:30
High Energy and High Pt Interactions
Oral Presentation
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 cross-section measurements
measurements from CMS and ATLAS collaborations would be presented. The
multijet topologies and event shape variables represent a particular
interest to test multi-leg LO...
Ms
Heather McAslan
(University of Sussex)
06/10/2015, 16:55
High Energy and High Pt Interactions
Oral Presentation
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 state-of-the-art results for their...
Mr
Nuno Anjos
(IFAE (Barcelona))
06/10/2015, 17:20
High Energy and High Pt Interactions
Oral Presentation
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. Double-differential cross sections for inclusive, di-, three- and four-jet final states are measured at different centre-of-mass energies of pp collisions with the ATLAS detector...
Dr
Hayk Pirumov
(DESY)
06/10/2015, 17:45
High Energy and High Pt Interactions
Oral Presentation
Signals of QCD instanton-induced processes are searched for in deep-inelastic scattering (DIS) at the electron-proton collider HERA in the kinematic region defined by the Bjorken-scaling 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...
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