B-meson production at forward and backward rapidity in p+p and Cu + Au collisions at √sNN=200 GeV

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Aidala , C , Kim , D J , Krizek , F , Novitzky , N , Rak , J & PHENIX Collaboration 2017 , ' B-meson production at forward and backward rapidity in p+p and Cu + Au collisions at √sNN=200 GeV ' , Physical Review C , vol. 96 , no. 6 , 064901 . https://doi.org/10.1103/PhysRevC.96.064901

Title: B-meson production at forward and backward rapidity in p+p and Cu + Au collisions at √sNN=200 GeV
Author: Aidala, C.; Kim, D. J.; Krizek, F.; Novitzky, N.; Rak, J.; PHENIX Collaboration
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: 2017-12-04
Language: eng
Number of pages: 18
Belongs to series: Physical Review C
ISSN: 2469-9985
URI: http://hdl.handle.net/10138/233509
Abstract: The fraction of J/psi mesons which come from B-meson decay, F-B -> J/psi is measured for J/psi rapidity 1.2 <|y| <2.2 and p(T) > 0 in p + p and Cu+Au collisions at root s(NN) = 200 GeV with the PHENIX detector. The extracted fraction is F-B -> J/psi = 0.025 +/- 0.006 (stat) +/- 0.010(syst) for p + p collisions. For Cu+Au collisions, F-B -> J/psi is 0.094 +/- 0.028(stat) +/- 0.037(syst) in the Au-going direction (-2.2 <y <-1.2) and 0.089 +/- 0.026(stat) +/- 0.040(syst) in the Cu-going direction (1.2 <y <2.2). The nuclear modification factor, R-CuAu,of B mesons in Cu+Au collisions is consistent with binary scaling of measured yields in p + p at both forward and backward rapidity.
Subject: HEAVY-FLAVOR
P PLUS
PHENIX
QUARK
DETECTOR
114 Physical sciences
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