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

Aidala, C. and Makek, Mihael and Zou, L. (PHENIX Collaboration) (2017) Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized p + p collisions at √s=200 GeV. Physical Review D, 95 (11). pp. 112001-15. ISSN 1550-7998

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Abstract

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 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. The asymmetry results are consistent with zero within uncertainties, and a model calculation based on twist-3 three-gluon correlations agrees with the data.

Item Type: Article
Date: 12 June 2017
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2017 American Physical Society. Received 29 March 2017. Published 12 June 2017.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 20 Sep 2017 17:40
Last Modified: 20 Sep 2017 17:40
URI: http://digre.pmf.unizg.hr/id/eprint/5577

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