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Title: Bottomonium suppression in heavy-ion collisions

Abstract

The thermal suppression of heavy quark bound states represents an ideal observable for determining if one has produced a quark-gluon plasma in ultrarelativistic heavy-ion collisions. In recent years, a paradigm shift has taken place in the theory of quarkonium suppression due to new first principles calculations of the thermal widths of these states. These thermal widths are large, e.g. O(20–100 MeV) for the Υ ( 1 S ) , and cause in-medium suppression of the states at temperatures below their traditionally defined disassociation temperatures. In order to apply the newly developed understanding to phenomenology, however, one must make detailed 3+1d dissipative hydrodynamical models of the plasma including the effects of finite shear viscosity. These effects include not only the modification of the time evolution of the temperature of the system, flow, etc., but also non-equilibrium modifications of the heavy quark potential itself. In this proceedings contribution, we briefly review the setup for these model calculations and present comparisons of theory with data from RHIC 200 GeV/nucleon Au-Au collisions, LHC 2.76 TeV/nucleon Pb-Pb, and LHC 5.02 TeV/nucleon Pb-Pb collisions as a function of number of participants, rapidity, and transverse momentum.

Authors:
 [1];  [2];  [1]
  1. Kent State Univ., Kent, OH (United States). Dept. of Physics
  2. Polish Academy of Sciences (PAS), Kraków (Poland). H. Niewodniczański Inst. of Nuclear Physics
Publication Date:
Research Org.:
Kent State Univ., Kent, OH (United States); Polish Academy of Sciences (PAS), Kraków (Poland)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); Polish National Science Centre (NCN)
OSTI Identifier:
1502359
Grant/Contract Number:  
SC0013470; DEC-2012/07/D/ST2/02125
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 967; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Krouppa, Brandon, Ryblewski, Radoslaw, and Strickland, Michael. Bottomonium suppression in heavy-ion collisions. United States: N. p., 2017. Web. doi:10.1016/j.nuclphysa.2017.05.073.
Krouppa, Brandon, Ryblewski, Radoslaw, & Strickland, Michael. Bottomonium suppression in heavy-ion collisions. United States. doi:10.1016/j.nuclphysa.2017.05.073.
Krouppa, Brandon, Ryblewski, Radoslaw, and Strickland, Michael. Mon . "Bottomonium suppression in heavy-ion collisions". United States. doi:10.1016/j.nuclphysa.2017.05.073. https://www.osti.gov/servlets/purl/1502359.
@article{osti_1502359,
title = {Bottomonium suppression in heavy-ion collisions},
author = {Krouppa, Brandon and Ryblewski, Radoslaw and Strickland, Michael},
abstractNote = {The thermal suppression of heavy quark bound states represents an ideal observable for determining if one has produced a quark-gluon plasma in ultrarelativistic heavy-ion collisions. In recent years, a paradigm shift has taken place in the theory of quarkonium suppression due to new first principles calculations of the thermal widths of these states. These thermal widths are large, e.g. O(20–100 MeV) for the Υ(1S), and cause in-medium suppression of the states at temperatures below their traditionally defined disassociation temperatures. In order to apply the newly developed understanding to phenomenology, however, one must make detailed 3+1d dissipative hydrodynamical models of the plasma including the effects of finite shear viscosity. These effects include not only the modification of the time evolution of the temperature of the system, flow, etc., but also non-equilibrium modifications of the heavy quark potential itself. In this proceedings contribution, we briefly review the setup for these model calculations and present comparisons of theory with data from RHIC 200 GeV/nucleon Au-Au collisions, LHC 2.76 TeV/nucleon Pb-Pb, and LHC 5.02 TeV/nucleon Pb-Pb collisions as a function of number of participants, rapidity, and transverse momentum.},
doi = {10.1016/j.nuclphysa.2017.05.073},
journal = {Nuclear Physics. A},
number = ,
volume = 967,
place = {United States},
year = {2017},
month = {9}
}

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Figures / Tables:

Fig. 1. Fig. 1. : RAA versus $N$part for $\Upsilon$(1S ) and $\Upsilon$(2S ). Left panel shows $\sqrt{^sNN}$ = 2.76 TeV with CMS data from [14] and the right panel shows $\sqrt{^sNN}$ = 5.02 TeV with preliminary CMS data from [15]. Lines correspond to three different values of the shear viscosity tomore » entropy density ratio.« less

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.