Hydrodynamic model of heavy-ion collisions with low momentum components

被引：0

作者：

Monnai, Akihiko ^{[1
]}

机构：

[1] Osaka Inst Technol, Fac Engn, Dept Gen Educ, Osaka 5358585, Japan

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2023年 / 50卷 / 09期

关键词：

heavy-ion collisions; Hadrons; photons; quantum chromodynamics; quark-gluon plasma; hydrodynamic model; NUCLEUS-NUCLEUS COLLISIONS; DIRECT-PHOTON PRODUCTION; QUARK-GLUON PLASMA; THERMAL PHOTONS; ELLIPTIC FLOW; ELECTROMAGNETIC PROBES; ANISOTROPIC FLOW; EMISSION; HOT; SPECTRA;

D O I：

10.1088/1361-6471/ace3e0

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：

Relativistic heavy-ion collisions suggest that low-momentum regions of the observed particle spectra are thermal and hydrodynamic, while medium-high momentum regions are non-thermal and perturbative. In this study, I construct a hydrodynamic model of heavy-ion collisions by cutting off the medium-high momentum contributions and investigate the phenomenological consequences. Numerical simulations indicate that the temperature of the quark matter can be higher at earlier times owing to the modification of the equation of state. It is also suggested that direct photon elliptic flow can be sensitive to the momentum dependence of thermalization.

引用

页数：15

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