Cross section for b b¯ production via dielectrons in d + Au collisions at sNN =200 GeV CROSS SECTION for b b¯ PRODUCTION VIA ⋯ A. ADARE et al.

PHENIX Collaboration

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22 Scopus citations

Abstract

We report a measurement of e+e- pairs from semileptonic heavy-flavor decays in d+Au collisions at sNN=200 GeV. By exploring the mass and transverse-momentum dependence of the yield, the bottom decay contribution can be isolated from charm, and quantified by comparison to pythia and mc@nlo simulations. The resulting bb¯-production cross section is σbb¯dAu=1.37±0.28(stat)±0.46(syst) mb, which is equivalent to a nucleon-nucleon cross section of σbbNN=3.4±0.8(stat)±1.1(syst)μb.

Original languageEnglish
Article number014907
JournalPhysical Review C - Nuclear Physics
Volume91
Issue number1
DOIs
StatePublished - 26 Jan 2015
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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