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Title: Measurement of charm and bottom production from semileptonic hadron decays in p+p collisions at s = 200 GeV

Journal Article · · Physical Review. D.
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Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in $p+p$ collisions at $$\sqrt{s}=200\text{ }\text{ }\mathrm{GeV}$$ are presented. The measurements proceed through displaced-vertex analyses of electron tracks from the semileptonic decay of charm and bottom hadrons using the PHENIX silicon-vertex detector. The relative contribution of electrons from bottom decays to inclusive heavy-flavor-electron production is found to be consistent with fixed-order-plus-next-to-leading-log perturbative-QCD calculations within experimental and theoretical uncertainties. These new measurements in $p+p$ collisions provide a precision baseline for comparable forthcoming measurements in $$\mathrm{A}+\mathrm{A}$$ collisions.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Iowa State Univ., Ames, IA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE
Contributing Organization:
PHENIX Collaboration
Grant/Contract Number:
SC0012704; AC05-00OR22725; AC02-05CH11231; FG02-92ER40692
OSTI ID:
1512344
Alternate ID(s):
OSTI ID: 1514385; OSTI ID: 1582335; OSTI ID: 1599713; OSTI ID: 1840168
Report Number(s):
BNL-211642-2019-JAAM
Journal Information:
Physical Review. D., Vol. 99, Issue 9; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Figures / Tables (24)