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B-meson production at forward and backward rapidity in p plus p and Cu plus Au collisions at root s(NN)=200 GeV

Title
B-meson production at forward and backward rapidity in p plus p and Cu plus Au collisions at root s(NN)=200 GeV
Author
김용균
Keywords
HEAVY-FLAVOR; PHENIX; QUARK
Issue Date
2017-12
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW C, v. 96, no. 6, Article no. 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.
URI
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.064901http://repository.hanyang.ac.kr/handle/20.500.11754/116755
ISSN
2469-9985; 2469-9993
DOI
10.1103/PhysRevC.96.064901
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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