Particle production in a hybrid approach for a beam energy scan of Au plus Au/Pb plus Pb collisions between root s(NN)=4.3 GeV and root s(NN)=200.0 GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00363547" target="_blank" >RIV/68407700:21340/22:00363547 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1140/epja/s10050-022-00872-x" target="_blank" >https://doi.org/10.1140/epja/s10050-022-00872-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epja/s10050-022-00872-x" target="_blank" >10.1140/epja/s10050-022-00872-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Particle production in a hybrid approach for a beam energy scan of Au plus Au/Pb plus Pb collisions between root s(NN)=4.3 GeV and root s(NN)=200.0 GeV

Popis výsledku v původním jazyce

Heavy-ion collisions at varying collision energies provide access to different regions of the QCD phase diagram. In particular collisions at intermediate energies are promising candidates to experimentally identify the postulated first order phase transition and critical end point. While heavy-ion collisions at low and high collision energies are theoretically well described by transport approaches and hydrodynamics+transport hybrid approaches, respectively, intermediate energy collisions remain a challenge. In this work, a modular hybrid approach, the SMASH-vHLLE-hybrid coupling 3+1D viscous hydrodynamics (vHLLE) to hadronic transport (SMASH), is introduced. It is validated and subsequently applied in Au+Au/Pb+Pb collisions between root s(NN) = 4.3 GeV and root s(NN) = 200.0 GeV to study the rapidity and transverse mass distributions of identified particles as well as excitation functions for dN/dy vertical bar(y=0) and < p(T)>. A good agreement with experimental measurements is obtained, including the baryon stopping dynamics. The transition from a Gaussian rapidity spectrum of protons at lower energies to the double-hump structure at high energies is reproduced. The centrality and energy dependence of charged particle v(2) is also described reasonably well. This work serves as a basis for further studies, e.g. systematic investigations of different equations of state or transport coefficients.

Název v anglickém jazyce

Particle production in a hybrid approach for a beam energy scan of Au plus Au/Pb plus Pb collisions between root s(NN)=4.3 GeV and root s(NN)=200.0 GeV

Popis výsledku anglicky

Heavy-ion collisions at varying collision energies provide access to different regions of the QCD phase diagram. In particular collisions at intermediate energies are promising candidates to experimentally identify the postulated first order phase transition and critical end point. While heavy-ion collisions at low and high collision energies are theoretically well described by transport approaches and hydrodynamics+transport hybrid approaches, respectively, intermediate energy collisions remain a challenge. In this work, a modular hybrid approach, the SMASH-vHLLE-hybrid coupling 3+1D viscous hydrodynamics (vHLLE) to hadronic transport (SMASH), is introduced. It is validated and subsequently applied in Au+Au/Pb+Pb collisions between root s(NN) = 4.3 GeV and root s(NN) = 200.0 GeV to study the rapidity and transverse mass distributions of identified particles as well as excitation functions for dN/dy vertical bar(y=0) and < p(T)>. A good agreement with experimental measurements is obtained, including the baryon stopping dynamics. The transition from a Gaussian rapidity spectrum of protons at lower energies to the double-hump structure at high energies is reproduced. The centrality and energy dependence of charged particle v(2) is also described reasonably well. This work serves as a basis for further studies, e.g. systematic investigations of different equations of state or transport coefficients.

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

European Physical Journal A, Hadrons and Nuclei

ISSN

1434-6001

e-ISSN

1434-601X

Svazek periodika

58

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

17

Strana od-do

—

Kód UT WoS článku

000890362700003

EID výsledku v databázi Scopus

2-s2.0-85142919448