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Title: Gluon contribution to open heavy-meson production in heavy-ion collisions

Abstract

A sizable contribution to heavy-quark production in high-energy hadronic and nuclear collisions comes from heavy quark-antiquark pair production from gluon splitting during the parton shower evolution. Here, we investigate the effect of gluon-medium interaction on open heavy flavor spectra in ultrarelativistic heavy-ion collisions. The interaction of hard gluons and heavy quarks with the hot QCD medium is simulated by utilizing a Langevin transport model that simultaneously incorporates contributions from collisional and radiative processes. It is found that, while the gluon splitting channel has quite an important contribution to the single D-meson production cross section, its influence on the final heavy-meson nuclear modification turns out to be quite modest because the average lifetime of hard gluons is short before splitting into heavy-quark-antiquark pairs during the evolution and propagation of the parton shower.

Authors:
 [1];  [2];  [3]
+ Show Author Affiliations
  1. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Nuclear Science Division
  2. China Central Normal Univ., Wuhan (China). Inst. of Particle Physics and Key Lab. of Quark and Lepton Physics (MOE)
  3. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Nuclear Science Division; China Central Normal Univ., Wuhan (China). Inst. of Particle Physics and Key Lab. of Quark and Lepton Physics (MOE)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP); Open Science Grid (OSG); Duke Univ., Durham, NC (United States); JET Collaboration; National Natural Science Foundation of China (NSFC); Ministry of Science and Technology (MOST) (China); National Basic Research Program of China
OSTI Identifier:
1429349
Alternate Identifier(s):
OSTI ID: 1238700
Grant/Contract Number:  
AC02-05CH11231; 11221504; 11375072; 2014DFG02050; 2014CB845404
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 2; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; particle and resonance production; quark-gluon plasma; relativistic heavy-ion collisions; hydrodynamic models

Citation Formats

Cao, Shanshan, Qin, Guang-You, and Wang, Xin-Nian. Gluon contribution to open heavy-meson production in heavy-ion collisions. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.93.024912.
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Cao, Shanshan, Qin, Guang-You, & Wang, Xin-Nian. Gluon contribution to open heavy-meson production in heavy-ion collisions. United States. https://doi.org/10.1103/PhysRevC.93.024912
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Cao, Shanshan, Qin, Guang-You, and Wang, Xin-Nian. Mon . "Gluon contribution to open heavy-meson production in heavy-ion collisions". United States. https://doi.org/10.1103/PhysRevC.93.024912. https://www.osti.gov/servlets/purl/1429349.
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@article{osti_1429349,
title = {Gluon contribution to open heavy-meson production in heavy-ion collisions},
author = {Cao, Shanshan and Qin, Guang-You and Wang, Xin-Nian},
abstractNote = {A sizable contribution to heavy-quark production in high-energy hadronic and nuclear collisions comes from heavy quark-antiquark pair production from gluon splitting during the parton shower evolution. Here, we investigate the effect of gluon-medium interaction on open heavy flavor spectra in ultrarelativistic heavy-ion collisions. The interaction of hard gluons and heavy quarks with the hot QCD medium is simulated by utilizing a Langevin transport model that simultaneously incorporates contributions from collisional and radiative processes. It is found that, while the gluon splitting channel has quite an important contribution to the single D-meson production cross section, its influence on the final heavy-meson nuclear modification turns out to be quite modest because the average lifetime of hard gluons is short before splitting into heavy-quark-antiquark pairs during the evolution and propagation of the parton shower.},
doi = {10.1103/PhysRevC.93.024912},
journal = {Physical Review C},
number = 2,
volume = 93,
place = {United States},
year = {Mon Feb 22 00:00:00 EST 2016},
month = {Mon Feb 22 00:00:00 EST 2016}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevC.93.024912
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Citation Metrics:
Cited by: 6 works
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Figures / Tables:

FIG. 1 FIG. 1: Probability for gluons to split intomore » $c$$\bar{c}$ as a function of gluon energy.« less
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