New parton distributions for collider physics

作者:Lai Hung Liang*; Guzzi Marco; Huston Joey; Li Zhao; Nadolsky Pavel M; Pumplin Jon; Yuan C P
来源:Physical Review D - Particles, Fields, Gravitation and Cosmology, 2010, 82(7): 074024.
DOI:10.1103/PhysRevD.82.074024

摘要

We extract new parton distribution functions (PDFs) of the proton by global analysis of hard scattering data in the general-mass framework of perturbative quantum chromodynamics. Our analysis includes new theoretical developments together with the most recent collider data from deep-inelastic scattering, vector boson production, and single-inclusive jet production. Because of the difficulty in fitting both the D0 Run-II W lepton asymmetry data and some fixed-target DIS data, we present two families of PDFs, CT10 and CT10W, without and with these high-luminosity W lepton asymmetry data included in the global analysis. With both sets of PDFs, we study theoretical predictions and uncertainties for a diverse selection of processes at the Fermilab Tevatron and the CERN Large Hadron Collider.

  • 出版日期2010-10-26