Drell-Yan Non-Singlet Spin Cross Sections and Spin Asymmetry to $O({\alpha }_s^2)$ (II)

Abstract

We present predictions for the non-singlet Drell-Yan longitudinal spin cross sections and spin asymmetry, $A_{LL}$, in proton-proton collisions at large $p_T$ at the RHIC energy of $200\gev$ at next-to-leading order QCD. The higher order corrections to the non-singlet polarized cross section, ${\sigma }_{NS}^{LL}$, are sizeable and similar to those found for the unpolarized cross section. The non-singlet asymmetry parameter, $A_{LL}^{NS}$, is very stable against higher order corrections and is a direct measurement of the non-singlet (i.e. valence) polarized quark distributions within the proton.

24 pages, 13 figures

References in corpus (3)

• QCD corrections to the longitudinally polarized Drell-Yan process
• Spin Dependent Drell Yan in QCD to $O({\alpha }_s^2)$ (I). (The Non-Singlet Sector)
• Spin Dependent Drell-Yan beyond Leading Order: Non-Singlet Virtual corrections to $O({\alpha }_s^2)$

Cited by in corpus (7)

• Next-to-leading order QCD corrections to high-p_T pion production in longitudinally polarized pp collisions
• Structure functions in the polarized Drell-Yan processes with spin-1/2 and spin-1 hadrons: I. general formalism
• One-loop weak corrections to $\gamma /Z$ hadro-production at finite transverse momentum
• NNLO corrections to massive lepton-pair production in longitudinally polarized proton-proton collisions
• Spin Dependence of Massive Lepton Pair Production in Proton-Proton Collisions
• NLO differential distributions of massive lepton-pair production in longitudinally polarized proton-proton collisions
• NLO corrections to the polarized Drell-Yan cross section in proton-proton collisions