Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

12-2017

Journal or Book Title

Physical Review C

Volume

96

Issue

6

First Page

064901

DOI

10.1103/PhysRevC.96.064901

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.

Comments

This article is published as Aidala, C., N. N. Ajitanand, Y. Akiba, R. Akimoto, J. Alexander, M. Alfred, V. Andrieux et al. "B-meson production at forward and backward rapidity in p+p and Cu+Au collisions at √sNN=200 GeV." Physical Review C 96, no. 6 (2017): 064901. DOI: 10.1103/PhysRevC.96.064901. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Included in

Nuclear Commons

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