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Title: Single transverse-spin asymmetry in Drell-Yan production at large and moderate transverse momentum

Abstract

We study the single-transverse-spin asymmetry for the Drell-Yan process. We consider production of the lepton pair at large transverse momentum, q{sub perpendicular}{approx}Q, where Q is the pair's mass. The spin asymmetry is then of higher twist and may be generated by twist-three quark-gluon correlation functions. Expanding the result for q{sub perpendicular}<<Q, we make contact with the transverse-momentum-dependent QCD factorization involving the so-called Sivers functions. We find that the two mechanisms, quark-gluon correlations on one hand and the Sivers effect on the other, contain the same physics in this region. This ties the two together and imposes an important constraint on phenomenological studies of single-transverse-spin asymmetries.

Authors:
 [1];  [2];  [3];  [4];  [5]
  1. Physics Department, University of Maryland, College Park, Maryland 20742 (United States)
  2. Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
  3. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  4. (United States)
  5. RIKEN BNL Research Center, Building 510A, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Publication Date:
OSTI Identifier:
20782992
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.73.094017; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; CORRELATION FUNCTIONS; CORRELATIONS; DRELL MODEL; FACTORIZATION; GLUONS; INCLUSIVE INTERACTIONS; LEPTONS; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS; SPIN; TRANSVERSE MOMENTUM

Citation Formats

Ji Xiangdong, Qiu Jianwei, Vogelsang, Werner, RIKEN BNL Research Center, Building 510A, Brookhaven National Laboratory, Upton, New York 11973, and Yuan Feng. Single transverse-spin asymmetry in Drell-Yan production at large and moderate transverse momentum. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.094017.
Ji Xiangdong, Qiu Jianwei, Vogelsang, Werner, RIKEN BNL Research Center, Building 510A, Brookhaven National Laboratory, Upton, New York 11973, & Yuan Feng. Single transverse-spin asymmetry in Drell-Yan production at large and moderate transverse momentum. United States. doi:10.1103/PHYSREVD.73.094017.
Ji Xiangdong, Qiu Jianwei, Vogelsang, Werner, RIKEN BNL Research Center, Building 510A, Brookhaven National Laboratory, Upton, New York 11973, and Yuan Feng. Mon . "Single transverse-spin asymmetry in Drell-Yan production at large and moderate transverse momentum". United States. doi:10.1103/PHYSREVD.73.094017.
@article{osti_20782992,
title = {Single transverse-spin asymmetry in Drell-Yan production at large and moderate transverse momentum},
author = {Ji Xiangdong and Qiu Jianwei and Vogelsang, Werner and RIKEN BNL Research Center, Building 510A, Brookhaven National Laboratory, Upton, New York 11973 and Yuan Feng},
abstractNote = {We study the single-transverse-spin asymmetry for the Drell-Yan process. We consider production of the lepton pair at large transverse momentum, q{sub perpendicular}{approx}Q, where Q is the pair's mass. The spin asymmetry is then of higher twist and may be generated by twist-three quark-gluon correlation functions. Expanding the result for q{sub perpendicular}<<Q, we make contact with the transverse-momentum-dependent QCD factorization involving the so-called Sivers functions. We find that the two mechanisms, quark-gluon correlations on one hand and the Sivers effect on the other, contain the same physics in this region. This ties the two together and imposes an important constraint on phenomenological studies of single-transverse-spin asymmetries.},
doi = {10.1103/PHYSREVD.73.094017},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 73,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}