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

, ; Aidala, C.; Oskarsson, Anders LU ; Silvermyr, David LU and Zou, L. (2019) In Physical Review D 99(9).
Abstract
Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in p+p collisions at s=200 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 A+A collisions. © 2019 authors.... (More)
Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in p+p collisions at s=200 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 A+A collisions. © 2019 authors. Published by the American Physical Society. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D
volume
99
issue
9
publisher
American Physical Society
external identifiers
  • scopus:85066955176
ISSN
1550-2368
DOI
10.1103/PhysRevD.99.092003
language
English
LU publication?
yes
id
5a8b4052-f9dd-4766-ae82-a1038b4f5fb9
date added to LUP
2019-06-18 15:16:46
date last changed
2019-07-16 04:11:43
@article{5a8b4052-f9dd-4766-ae82-a1038b4f5fb9,
  abstract     = {Measurements of the differential production of electrons from open-heavy-flavor hadrons with charm- and bottom-quark content in p+p collisions at s=200 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 A+A collisions. © 2019 authors. Published by the American Physical Society.},
  articleno    = {092003},
  author       = {,  and Aidala, C. and Oskarsson, Anders and Silvermyr, David and Zou, L.},
  issn         = {1550-2368},
  language     = {eng},
  number       = {9},
  publisher    = {American Physical Society},
  series       = {Physical Review D},
  title        = {Measurement of charm and bottom production from semileptonic hadron decays in p+p collisions at s =200 GeV},
  url          = {http://dx.doi.org/10.1103/PhysRevD.99.092003},
  volume       = {99},
  year         = {2019},
}