Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

6-1-2017

Journal or Book Title

Physical Review D

Volume

95

Issue

11

First Page

112001

DOI

10.1103/PhysRevD.95.112001

Abstract

The cross section and transverse single-spin asymmetries of mu(-) and mu(+) from open heavy-flavor decays in polarized p + p collisions at root 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 root 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 < vertical bar y vertical bar < 2.0) over the transverse momentum range of 1.25 < p(T) < 7 GeV/c for the cross section and 1.25 < p(T) < 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.

Comments

This article is published as Aidala, C., N. N. Ajitanand, Y. Akiba, R. Akimoto, J. Alexander, M. Alfred, K. Aoki et al. "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, no. 11 (2017): 112001. DOI:10.1103/PhysRevD.95.112001. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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