LHC data and the proton strangeness

Abstract

The LHC has already provided many relevant measurements for the determination of parton distribution functions (PDFs). Measurements of the W and Z lepton distributions are of interest for flavor separation and in particular for the determination of the relatively poorly constrained strange quark distribution. In this contribution we shall discuss the computational developments that allow for the efficient inclusion of LHC data into the NNPDF framework consistently at NLO for all observables, and we study the constraints of the LHC W and Z data on the strangeness content of the proton.

4 pages, 3 figures; to appear in the proceedings of the 2012 Rencontres de Moriond, QCD and High Energy Interactions

References in corpus (9)

• A first unbiased global NLO determination of parton distributions and their uncertainties
• Impact of Heavy Quark Masses on Parton Distributions and LHC Phenomenology
• Measurement of the inclusive W+- and Z/gamma cross sections in the electron and muon decay channels in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector
• Determination of the strange quark density of the proton from ATLAS measurements of the W->l nu and Z->ll cross sections
• Measurement of the Inclusive Jet Cross Section in pp Collisions at sqrt(s) = 7 TeV
• Measurement of the lepton charge asymmetry in inclusive W production in pp collisions at sqrt(s) = 7 TeV
• Inclusive $W$ and $Z$ production in the forward region at $\sqrt{s}=7$ TeV
• Measurement of the differential dijet production cross section in proton-proton collisions at sqrt(s)=7 TeV

Cited by in corpus (1)

• Proton structure at the LHC