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

Aidala, C. and Makek, Mihael and Vukman, Nikola and Zou, L. (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, 96 (6). pp. 64901-18. ISSN 2469-9985

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Abstract

The fraction of J/ψ mesons which come from B-meson decay, FB→J/ψ, is measured for J/ψ rapidity 1.2<|y|<2.2 and pT>0 in p+p and Cu+Au collisions at √sNN = 200 GeV with the PHENIX detector. The extracted fraction is FB→J/ψ=0.025±0.006 (stat) ± 0.010(syst) for p+p collisions. For Cu+Au collisions, FB→J/ψ 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, RCuAu, of Bmesons in Cu+Au collisions is consistent with binary scaling of measured yields in p+p at both forward and backward rapidity.

Item Type: Article
Date: 2017
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2017 American Physical Society. Received 13 February 2017; published 4 December 2017.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 10 Mar 2018 12:51
Last Modified: 10 Apr 2018 16:41
URI: http://digre.pmf.unizg.hr/id/eprint/5775

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