Title: Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized p+p collisions at s=200??GeV

Journal Article · · Physical Review. D.
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The cross section and transverse single-spin asymmetries of μ- and μ+ from open heavy-flavor decays in polarized p+p collisions at √s = 200 GeV were measured in this paper by the PHENIX experiment during 2012 at the Relativistic Heavy Ion Collider. Because heavy-flavor production is dominated by gluon-gluon interactions at √s = 200 GeV, these measurements offer a unique opportunity to obtain information on the trigluon correlation functions. The measurements are performed at forward and backward rapidity (1.4 < |y| < 2.0) over the transverse momentum range of 1.25 < pT < 7 GeV/c for the cross section and 1.25 < pT < 5 GeV/c for the asymmetry measurements. The obtained cross section is compared to a fixed-order-plus-next-to-leading-log perturbative-quantum-chromodynamics calculation. Finally, the asymmetry results are consistent with zero within uncertainties, and a model calculation based on twist-3 three-gluon correlations agrees with the data.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); Nuclear Science and Security Consortium; The Regents of the Univ. of California, Berkeley, CA (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Organization:
PHENIX Collaboration
Grant/Contract Number:
NA0003180; SC0012704
OSTI ID:
1354705
Report Number(s):
BNL-113803-2017-JA
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 11 Vol. 95; ISSN PRVDAQ; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

Probing the gluon Sivers function in p ↑ p → J / ψ   X and p ↑ p → D X journal August 2017
Single-spin asymmetry of J / ψ production in p + p , p + Al , and p + Au collisions with transversely polarized proton beams at s N N = 200     GeV journal July 2018
Unraveling the gluon Sivers function in hadronic collisions at RHIC journal February 2019
Measurements of μ μ pairs from open heavy flavor and Drell-Yan in p + p collisions at s = 200     GeV journal April 2019