Single electron yields from semileptonic charm and bottom hadron decays in Au+Au collisions at sNN =200 GeV
Adare, A. ; Christiansen, Peter LU ; Oskarsson, Anders LU ; Silvermyr, David LU
; Stenlund, Evert
LU
and Zou, L.
(2016)
In Physical Review C
93(3).
- Abstract
- The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy flavor production in minimum bias Au+Au collisions at sNN=200 GeV via the yields of electrons from semileptonic decays of charm and bottom hadrons. Previous heavy flavor electron measurements indicated substantial modification in the momentum distribution of the parent heavy quarks owing to the quark-gluon plasma created in these collisions. For the first time, using the PHENIX silicon vertex detector to measure precision displaced tracking, the relative contributions from charm and bottom hadrons to these electrons as a function of transverse momentum are measured in Au+Au collisions. We compare the fraction of electrons from bottom hadrons to... (More)
- The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy flavor production in minimum bias Au+Au collisions at sNN=200 GeV via the yields of electrons from semileptonic decays of charm and bottom hadrons. Previous heavy flavor electron measurements indicated substantial modification in the momentum distribution of the parent heavy quarks owing to the quark-gluon plasma created in these collisions. For the first time, using the PHENIX silicon vertex detector to measure precision displaced tracking, the relative contributions from charm and bottom hadrons to these electrons as a function of transverse momentum are measured in Au+Au collisions. We compare the fraction of electrons from bottom hadrons to previously published results extracted from electron-hadron correlations in p+p collisions at sNN=200 GeV and find the fractions to be similar within the large uncertainties on both measurements for pT>4GeV/c. We use the bottom electron fractions in Au+Au and p+p along with the previously measured heavy flavor electron RAA to calculate the RAA for electrons from charm and bottom hadron decays separately. We find that electrons from bottom hadron decays are less suppressed than those from charm for the region 3 (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/dcc6bf82-7926-482b-aed3-9020c8d08ca9
- author
- Adare, A.
; Christiansen, Peter
LU
; Oskarsson, Anders
LU
; Silvermyr, David
LU
; Stenlund, Evert
LU
and Zou, L.
- author collaboration
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C
- volume
- 93
- issue
- 3
- article number
- 034904
- publisher
- American Physical Society
- external identifiers
-
- scopus:84960485023
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.93.034904
- language
- English
- LU publication?
- yes
- id
- dcc6bf82-7926-482b-aed3-9020c8d08ca9
- date added to LUP
- 2022-03-31 14:45:08
- date last changed
- 2023-04-02 22:56:07
@article{dcc6bf82-7926-482b-aed3-9020c8d08ca9,
abstract = {{The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy flavor production in minimum bias Au+Au collisions at sNN=200 GeV via the yields of electrons from semileptonic decays of charm and bottom hadrons. Previous heavy flavor electron measurements indicated substantial modification in the momentum distribution of the parent heavy quarks owing to the quark-gluon plasma created in these collisions. For the first time, using the PHENIX silicon vertex detector to measure precision displaced tracking, the relative contributions from charm and bottom hadrons to these electrons as a function of transverse momentum are measured in Au+Au collisions. We compare the fraction of electrons from bottom hadrons to previously published results extracted from electron-hadron correlations in p+p collisions at sNN=200 GeV and find the fractions to be similar within the large uncertainties on both measurements for pT>4GeV/c. We use the bottom electron fractions in Au+Au and p+p along with the previously measured heavy flavor electron RAA to calculate the RAA for electrons from charm and bottom hadron decays separately. We find that electrons from bottom hadron decays are less suppressed than those from charm for the region 3}},
author = {{Adare, A. and Christiansen, Peter and Oskarsson, Anders and Silvermyr, David and Stenlund, Evert and Zou, L.}},
issn = {{2469-9985}},
language = {{eng}},
number = {{3}},
publisher = {{American Physical Society}},
series = {{Physical Review C}},
title = {{Single electron yields from semileptonic charm and bottom hadron decays in Au+Au collisions at sNN =200 GeV}},
url = {{http://dx.doi.org/10.1103/PhysRevC.93.034904}},
doi = {{10.1103/PhysRevC.93.034904}},
volume = {{93}},
year = {{2016}},
}