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Title: Study of the sign change of the Sivers function from STAR collaboration W/Z production data

Here, recent data on the transverse single spin asymmetry $$A_N$$ measured by the STAR Collaboration for $$p ↑\, p \to W^\pm/Z^0 \, X$$ reactions at RHIC allow the first investigation of the Sivers function in Drell-Yan processes and of its expected sign change with respect to SIDIS processes. A critical assessment of the significance of the data is attempted.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4]
  1. Univ. di Torino, Torino (Italy); INFN - Sezione di Torino, Torino (Italy)
  2. Univ. di Cagliari, Cittadella Univ., Monserrato (Italy); INFN - Sezione di Cagliari, Cittadella Univ., Monserrato (Italy)
  3. INFN - Sezione di Cagliari, Cittadella Univ., Monserrato (Italy)
  4. Penn State Univ. Berks, Reading, PA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-THY-16-2404; DOE/OR/23177-4024; arXiv:1612.06413
Journal ID: ISSN 1029-8479; PII: 5832; TRN: US1700545
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 4; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Deep Inelastic Scattering (Phenomenology); QCD Phenomenology
OSTI Identifier:
1350965