Transverse single spin asymmetry in Drell-Yan production in polarized pA collisions

Jian Zhou
Phys. Rev. D 92, 014034 – Published 29 July 2015

Abstract

We study the transverse single spin asymmetry in Drell-Yan production in pA collisions with incoming protons being transversely polarized. We carry out the calculation using a newly developed hybrid approach. The polarized cross section computed in the hybrid approach is consistent with that obtained from the usual TMD factorization at low transverse momentum as expected, whereas at high transverse momentum, color entanglement effect is found to play a role in contributing to the spin asymmetry of Drell-Yan production, though it is a 1/Nc2 suppressed effect.

  • Figure
  • Received 23 April 2015

DOI:https://doi.org/10.1103/PhysRevD.92.014034

© 2015 American Physical Society

Authors & Affiliations

Jian Zhou

  • Nikhef and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam, the Netherlands

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Issue

Vol. 92, Iss. 1 — 1 July 2015

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