Nuclear Enhanced Higher-Twist Effects in the Drell-Yan Process

Preprint

7 February 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0002074

Abstract

We calculate the Drell-Yan cross section, resolving the full kinematics of the lepton pair, at high transverse momentum for hadron nucleus collisions. We use the general framework of Luo, Qiu and Sterman to calculate double scattering contributions that are of twist-4 and demonstrate their nuclear enhancement. By comparing single and double scattering at RHIC energies we find that double scattering gives contributions of comparable size. We also show that the angular dependence of the Drell-Yan pair discriminates between the various double scattering contributions.

Keywords

DOUBLE SCATTERING CONTRIBUTIONS
NUCLEAR ENHANCED
ENHANCED HIGHER
TWIST EFFECTS
HIGHER TWIST
SCATTERING
DRELL YAN

All Related Versions

Version 1, 2000-02-07, ArXiv
Published version: Nuclear Physics B, 582 (1-3), 537.

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