Constraints on large-$x$ parton distributions from new weak boson production and deep-inelastic scattering data

Abstract

We present a new set of leading twist parton distribution functions, referred to as "CJ15", which take advantage of developments in the theoretical treatment of nuclear corrections as well as new data. The analysis includes for the first time data on the free neutron structure function from Jefferson Lab, and new high-precision charged lepton and W-boson asymmetry data from Fermilab. These significantly reduce the uncertainty on the d/u ratio at large values of x and provide new insights into the partonic structure of bound nucleons.

50 pages, 17 figures, 3 tables. Uncertainty bands revised. LO chi^2 values corrected in Table 1. Version to appear in Phys.Rev.D

References in corpus (19)

• Parton distributions in the LHC era: MMHT 2014 PDFs
• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
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• Distribution Functions of the Nucleon and Pion in the Valence Region
• Determination of the strange quark density of the proton from ATLAS measurements of the W->l nu and Z->ll cross sections
• Covariant spectator theory of np scattering: Phase shifts obtained from precision fits to data below 350 MeV
• Measurement of the shape of the boson rapidity distribution for p\bar{p}-> Z/gamma*-> e+e- +X events produced at sqrt(s) of 1.96 TeV
• Direct Measurement of the $W$ Production Charge Asymmetry in $\ppbar$ Collisions at $\sqrt{s}=1.96$ TeV
• New limits on intrinsic charm in the nucleon from global analysis of parton distributions
• Fixed target Drell-Yan data and NNLO QCD fits of parton distribution functions
• Extended Parameterisations for MSTW PDFs and their effect on Lepton Charge Asymmetry from W Decays
• Measurement of the electron charge asymmetry in $\mathbf{p}\bar{\mathbf{p}}\to \mathbf{W}+\mathbf{X}\to \mathbf{e\nu }+\mathbf{X}$ decays in $\mathbf{p}\bar{\mathbf{p}}$ collisions at $\sqrt{\mathbf{s}}=1.96$ TeV
• Determination of Strange Sea Quark Distributions from Fixed-target and Collider Data
• Higher Twist Contributions to the Structure Functions F_2^p(x,Q^2) and F_2^d(x,Q^2) at Large x and Higher Orders
• Neutron Structure Functions
• Measurement of the differential cross section for the production of an isolated photon with associated jet in ppbar collisions at sqrt(s)=1.96 TeV
• Nuclear effects in the proton-deuteron Drell-Yan process
• HERA Collider Results

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