Measurement of the Transverse Single-Spin Asymmetry in at RHIC
Journal Article
·
· Physical Review Letters
We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at s=500 GeV by the STAR experiment at RHIC. The measured observable is sensitive to the Sivers function, one of the transverse-momentum-dependent parton distribution functions, which is predicted to have the opposite sign in proton-proton collisions from that observed in deep inelastic lepton-proton scattering. These data provide the first experimental investigation of the nonuniversality of the Sivers function, fundamental to our understanding of QCD.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Organization:
- STAR Collaboration
- Grant/Contract Number:
- SC00112704; AC02-05CH11231
- OSTI ID:
- 1341525
- Alternate ID(s):
- OSTI ID: 1245053; OSTI ID: 1459369
- Report Number(s):
- BNL-112275-2016-JA; R&D Project: PO 004; KB0202012
- Journal Information:
- Physical Review Letters, Vol. 116, Issue 13; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 59 works
Citation information provided by
Web of Science
Web of Science
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Transverse spin observables in hard-scattering hadronic processes within collinear factorization
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