Model study of the energy dependence of the correlation between anisotropic flow and the mean transverse momentum in Au plus Au collisions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00363513" target="_blank" >RIV/68407700:21340/22:00363513 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.105.044901" target="_blank" >https://doi.org/10.1103/PhysRevC.105.044901</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.105.044901" target="_blank" >10.1103/PhysRevC.105.044901</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Model study of the energy dependence of the correlation between anisotropic flow and the mean transverse momentum in Au plus Au collisions

Popis výsledku v původním jazyce

A hybrid model that employs the hadron-string transport model UrQMD and the (3 + 1)-dimensional relativistic viscous hydrodynamic code vHLLE, is used to investigate the beam energy dependence of the correlation coefficient rho(nu(2)(2), [P-T]) between the average transverse momentum [P-T] of hadrons emitted in an event and the square of the anisotropic flow coefficient nu(2)(2). For Au + Au collisions, the model predicts characteristic patterns for the energy and event-shape dependence of the variances for [P-T] and v(n)(2) [Var([P-T] and Var(nu(2)(2))], and the covariance of v(n)(2) and [P-T] [cov(nu(2)(2), [P-T])], consistent with the attenuation effects of the specific shear viscosity eta/s. In contrast, rho(nu(2)(2), [P-T]) is predicted to be insensitive to the beam energy but sensitive to the initial-state geometry of the collisions. These observations suggest that a precise set of measurements for Var([P-T]), Var(nu(2)(2)), cov(nu(2)(2), [P-T]) and rho(nu(2)(2),[P-T]) as a function of beam energy and event shape, could serve to constrain better the eccentricities and their fluctuations over the entire span of beam energies, and consequently aid precision extraction of the temperature and baryon chemical-potential dependence of eta/s from the wealth of Au + Au data obtained in the RHIC beam energy scan.

Název v anglickém jazyce

Model study of the energy dependence of the correlation between anisotropic flow and the mean transverse momentum in Au plus Au collisions

Popis výsledku anglicky

A hybrid model that employs the hadron-string transport model UrQMD and the (3 + 1)-dimensional relativistic viscous hydrodynamic code vHLLE, is used to investigate the beam energy dependence of the correlation coefficient rho(nu(2)(2), [P-T]) between the average transverse momentum [P-T] of hadrons emitted in an event and the square of the anisotropic flow coefficient nu(2)(2). For Au + Au collisions, the model predicts characteristic patterns for the energy and event-shape dependence of the variances for [P-T] and v(n)(2) [Var([P-T] and Var(nu(2)(2))], and the covariance of v(n)(2) and [P-T] [cov(nu(2)(2), [P-T])], consistent with the attenuation effects of the specific shear viscosity eta/s. In contrast, rho(nu(2)(2), [P-T]) is predicted to be insensitive to the beam energy but sensitive to the initial-state geometry of the collisions. These observations suggest that a precise set of measurements for Var([P-T]), Var(nu(2)(2)), cov(nu(2)(2), [P-T]) and rho(nu(2)(2),[P-T]) as a function of beam energy and event shape, could serve to constrain better the eccentricities and their fluctuations over the entire span of beam energies, and consequently aid precision extraction of the temperature and baryon chemical-potential dependence of eta/s from the wealth of Au + Au data obtained in the RHIC beam energy scan.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EF20_079%2F0017983" target="_blank" >EF20_079/0017983: Mobility ČVUT MSCA-IF-IV-v-79</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

105

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000789990900002

EID výsledku v databázi Scopus

2-s2.0-85128374185