Conveners
Proton Structure from ep and pp
- Ingo Schienbein (LPSC Grenoble)
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Prof. Claudia Glasman (Universidad Autonoma de Madrid)08/10/2015, 14:00Proton Structure from ep and ppOral PresentationIsolated prompt photons provide a direct probe of short- distance physics, complementary to that provided by measurements of jets or vector-bosons 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 centre-of-mass energies of pp collisions over a wide range of transverse momenta. These...Go to contribution page
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Dr Iris Abt (MPI)08/10/2015, 14:20Proton Structure from ep and ppOral PresentationA 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 four-momentum-transfer squared, Q2, and Bjorken x. The correlations of the...Go to contribution page
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Dr Maxime Gouzevitch (IPN, IN2P3-CNRS, UCB Lyon 1)08/10/2015, 14:45Proton Structure from ep and ppOral PresentationRecent results on PDF constraints and alpha_s from CMS are presentedGo to contribution page
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Dr Peter Bussey (Glasgow University)08/10/2015, 15:10Proton Structure from ep and ppOral PresentationSeveral 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 strange-quark density at low x. Similarly, the ratio of W+/W- production is found to constrain the...Go to contribution page
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Hayk Pirumov (DESY)08/10/2015, 16:05Proton Structure from ep and ppOral PresentationThe 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 open-source software framework for the determination of the proton's PDFs and for the interpretation of the...Go to contribution page
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Dr Andy Buckley (University of Glasgow)08/10/2015, 16:25Proton Structure from ep and ppOral PresentationThe 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...Go to contribution page
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1. Combination of D* Differential Cross-Section Measurements in Deep-Inelastic ep Scattering at HERAAchim Geiser (DESY Hamburg)08/10/2015, 16:45Proton Structure from ep and ppOral PresentationH1 and ZEUS have published single-differential cross sections for inclusive D* meson production in deep-inelastic 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...Go to contribution page
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Alessandra Filippi (INFN Torino)08/10/2015, 17:05Proton Structure from ep and ppOral PresentationInclusive 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...Go to contribution page