MC-Simulation of the Transverse Double Spin Asymmetry for RHIC

Abstract

Using {\sc Sphinx tt}, a new MC simulation program for transverse polarized nucleon--nucleon scattering based on {\sc Pythia~5.6}, we calculate the transverse double spin asymmetry $A^{TT}$ in the Drell-Yan process. If one assumes (quite arbitrarily) that the transversity parton distribution $\delta q(x,Q^2)$ equals the helicity distribution $\Delta q(x,Q^2)$ at some low $Q_0^2$ scale, the resulting asymmetry is of order 1\%. In this case is $A^{TT}$ would hardly be be measurable with PHENIX at RHIC.

17 pages, 5 figures

References in corpus (3)

• Positivity Constraints for Spin-Dependent Parton Distributions
• Parton Distributions from W+- and Z Production in Polarized pp and pn Collisions at RHIC
• QCD Selection Rules in Polarized Hadron Collisions

Cited by in corpus (8)

• Investigating the origins of transverse spin asymmetries at RHIC
• Spin Physics and Polarized Structure Functions
• Next-to-leading Order Evolution of Transversity Distributions and Soffer's Inequality
• Soffer's inequality and the transversely polarized Drell-Yan process at next-to-leading order
• Dilepton production near partonic threshold in transversely polarized proton-antiproton collisions
• Double transverse spin asymmetries in vector boson production
• Next-to-leading order QCD corrections to A_TT for prompt photon production
• Double Sivers effect asymmetries and their impact on transversity measurements at RHIC