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

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Aidala , C , Kim , D J , Krizek , F , Novitzky , N , Rak , J & PHENIX Collaboration 2017 , ' Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized p plus p collisions at root s=200 GeV ' , Physical Review D , vol. 95 , no. 11 , 112001 . https://doi.org/10.1103/PhysRevD.95.112001

Title: Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized p plus p collisions at root s=200 GeV
Author: Aidala, C.; Kim, D. J.; Krizek, F.; Novitzky, N.; Rak, J.; PHENIX Collaboration
Other contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2017-06-12
Language: eng
Number of pages: 15
Belongs to series: Physical Review D
ISSN: 2470-0010
DOI: https://doi.org/10.1103/PhysRevD.95.112001
URI: http://hdl.handle.net/10138/307864
Abstract: The cross section and transverse single-spin asymmetries of mu(-) and mu(+) from open heavy-flavor decays in polarized p + p collisions at pffisffiffi 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 ffiffiffi 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.
Subject: HARD-SCATTERING
ANALYZING POWER
QUARKS
TARGET
BEAMS
114 Physical sciences
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