b(b)over-bar production in p plus p collisions at PHENIX

被引：0

作者：

Sen, Abhisek ^{[1
]}

机构：

[1] Iowa State Univ, Ames, IA 50011 USA

来源：

NUCLEAR PHYSICS A | 2016年 / 956卷

关键词：

Heavy flavor; PHENIX; bottom production; oscillation;

D O I：

10.1016/j.nuclphysa.2016.02.040

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The b (b) over bar production cross section has been measured by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) in p + p collisions at root s = 200 and 500 GeV. In the absence of displaced-vertex b-tagging, dilepton continuum pairs provide a unique opportunity for b-quark production cross section measurement. We report two independent preliminary analyses of bottom quark production measurements using unlike-sign dielectron pairs measured in the rapidity range vertical bar y vertical bar < 0.35 and like-sign dimuon pairs measured in the rapidity range 1.2 < vertical bar y vertical bar < 2.2. The extrapolated total production cross-sections agree with the NLO pQCD theory calculations within the uncertainties.

引用

页码：489 / 492

页数：4

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