论文信息 - Parton distributions for the LHC

Parton distributions for the LHC

We present a preliminary set of updated NLO parton distributions. For the first time we have a quantitative extraction of the strange quark and antiquark distributions and their uncertainties determined from CCFR and NuTeV dimuon cross sections. Additional jet data from HERA and the Tevatron improve our gluon extraction. Lepton asymmetry data and neutrino structure functions improve the flavour separation, particularly constraining the down quark valence distribution.

[1] D. Mason,et al. Measurement of the strange-antistrange asymmetry at NLO in QCD from NuTeV dimuon data , 2006 .

[2] Frank Close. Deep inelastic scattering , 1990 .

[3] D. Marquardt. An Algorithm for Least-Squares Estimation of Nonlinear Parameters , 1963 .

[4] Kenneth Levenberg. A METHOD FOR THE SOLUTION OF CERTAIN NON – LINEAR PROBLEMS IN LEAST SQUARES , 1944 .

[5] Louis Lyons,et al. Statistical Problems in Particle Physics, Astrophysics and Cosmology : proceedings of PHYSTAT05, Oxford, UK, 12-15 September 2005 , 2003 .

[6] Joel Feltesse,et al. Combination of H1 and ZEUS Deep Inelastic ep Scattering Cross Section Measurements , 2008, DIS 2008.

[7] G. G. Stokes. "J." , 1890, The New Yale Book of Quotations.

[8] Bo-Young Han. Measurement of the W boson production charge asymmetry in pp¯ collisions , 2008 .

[9] E. Barrelet,et al. Measurement of the inclusive ep scattering cross section at low Q2 and x at HERA , 2009, 0904.0929.

[10] J. Y. Han,et al. dσ/dy distribution of Drell-Yan dielectron pairs at CDF , 2008 .

[12] F. James. MINUIT Function Minimization and Error Analysis: Reference Manual Version 94.1 , 1994 .

[13] P ? ? ? ? ? ? ? % ? ? ? ? , 1991 .

[14] J. E. Glynn,et al. Numerical Recipes: The Art of Scientific Computing , 1989 .