Resolving discrepancies in the estimation of heavy quark transport coefficients in relativistic heavy-ion collisions
Abstract
Heavy flavor observables provide valuable information on the properties of the hot and dense quark-gluon plasma (QGP) created in ultrarelativistic nucleus-nucleus collisions. Various microscopic models have successfully described many of the observables associated with its formation. Their transport coefficients differ, however, due to different assumptions about the underlying interaction of the heavy quarks with the plasma constituents, different initial geometries and formation times, different hadronization processes, and a different time evolution of the QGP. In this paper we present the transport coefficients of these models and investigate systematically how some of these assumptions influence the heavy quark properties at the end of the QGP expansion. For this purpose we impose on these models the same initial condition and the same model for the QGP expansion and show that both have considerable influence on RAA and v2.
- Authors:
-
- Duke Univ., Durham, NC (United States)
- Johann Wolfgang Goethe Univ., D-Frankfurt am Main (Germany)
- Univ. GieBen (Germany)
- SUBATECH UMR 6457 (IMT Atlantique, Univ. de Nantes, IN2P3/CNRS), Nantes (France)
- Johann Wolfgang Goethe Univ., D-Frankfurt am Main (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
- SUBATECH UMR 6457 (IMT Atlantique, Univ. de Nantes, IN2P3/CNRS), Nantes (France); Johann Wolfgang Goethe Univ., D-Frankfurt am Main (Germany)
- Wayne State Univ., Detroit, MI (United States)
- Univ. of Catania (Italy); Lab. Nazionali del Sud, Catania (Italy)
- Publication Date:
- Research Org.:
- Duke Univ., Durham, NC (United States); Wayne State Univ., Detroit, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- OSTI Identifier:
- 1609638
- Alternate Identifier(s):
- OSTI ID: 1490513
- Grant/Contract Number:
- FG02-05ER41367; SC0013460; 1550300
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 1; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; physics; jets & heavy flavor physics; quark-gluon plasma; relativistic heavy-ion collisions
Citation Formats
Xu, Yingru, Bass, Steffen A., Moreau, Pierre, Song, Taesoo, Nahrgang, Marlene, Bratkovskaya, Elena, Gossiaux, Pol, Aichelin, Jorg, Cao, Shanshan, Greco, Vincenzo, Coci, Gabriele, and Werner, Klaus. Resolving discrepancies in the estimation of heavy quark transport coefficients in relativistic heavy-ion collisions. United States: N. p., 2019.
Web. doi:10.1103/physrevc.99.014902.
Xu, Yingru, Bass, Steffen A., Moreau, Pierre, Song, Taesoo, Nahrgang, Marlene, Bratkovskaya, Elena, Gossiaux, Pol, Aichelin, Jorg, Cao, Shanshan, Greco, Vincenzo, Coci, Gabriele, & Werner, Klaus. Resolving discrepancies in the estimation of heavy quark transport coefficients in relativistic heavy-ion collisions. United States. https://doi.org/10.1103/physrevc.99.014902
Xu, Yingru, Bass, Steffen A., Moreau, Pierre, Song, Taesoo, Nahrgang, Marlene, Bratkovskaya, Elena, Gossiaux, Pol, Aichelin, Jorg, Cao, Shanshan, Greco, Vincenzo, Coci, Gabriele, and Werner, Klaus. Thu .
"Resolving discrepancies in the estimation of heavy quark transport coefficients in relativistic heavy-ion collisions". United States. https://doi.org/10.1103/physrevc.99.014902. https://www.osti.gov/servlets/purl/1609638.
@article{osti_1609638,
title = {Resolving discrepancies in the estimation of heavy quark transport coefficients in relativistic heavy-ion collisions},
author = {Xu, Yingru and Bass, Steffen A. and Moreau, Pierre and Song, Taesoo and Nahrgang, Marlene and Bratkovskaya, Elena and Gossiaux, Pol and Aichelin, Jorg and Cao, Shanshan and Greco, Vincenzo and Coci, Gabriele and Werner, Klaus},
abstractNote = {Heavy flavor observables provide valuable information on the properties of the hot and dense quark-gluon plasma (QGP) created in ultrarelativistic nucleus-nucleus collisions. Various microscopic models have successfully described many of the observables associated with its formation. Their transport coefficients differ, however, due to different assumptions about the underlying interaction of the heavy quarks with the plasma constituents, different initial geometries and formation times, different hadronization processes, and a different time evolution of the QGP. In this paper we present the transport coefficients of these models and investigate systematically how some of these assumptions influence the heavy quark properties at the end of the QGP expansion. For this purpose we impose on these models the same initial condition and the same model for the QGP expansion and show that both have considerable influence on RAA and v2.},
doi = {10.1103/physrevc.99.014902},
journal = {Physical Review C},
number = 1,
volume = 99,
place = {United States},
year = {Thu Jan 10 00:00:00 EST 2019},
month = {Thu Jan 10 00:00:00 EST 2019}
}
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Figures / Tables:
FIG. 1: A skeleton showing each ingredients that needs to be taken into consideration during the implementation of heavy quark evolution, which could affect the estimation of the heavy quark transport coefficients in the $\mathrm{QGP}$ phase.
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