Bottomonium suppression in heavy-ion collisions

被引:9
|
作者
Krouppa, Brandon [1 ]
Ryblewski, Radoslaw [2 ]
Strickland, Michael [1 ]
机构
[1] Kent State Univ, Dept Phys, Kent, OH 44242 USA
[2] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
关键词
D O I
10.1016/j.nuclphysa.2017.05.073
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
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 gamma(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.
引用
收藏
页码:604 / 607
页数:4
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