Benchmark of initial state models for heavy-ion collisions at (s_NN)^{1/2}=27 and 62 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00349572" target="_blank" >RIV/68407700:21340/21:00349572 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.103.034902" target="_blank" >https://doi.org/10.1103/PhysRevC.103.034902</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.103.034902" target="_blank" >10.1103/PhysRevC.103.034902</a>
Alternative languages
Result language
angličtina
Original language name
Benchmark of initial state models for heavy-ion collisions at (s_NN)^{1/2}=27 and 62 GeV
Original language description
Description of relativistic heavy-ion collisions at the energies of the BNL Relativistic Heavy Ion Collider (RHIC) Beam Energy Scan program with fluid dynamic approach poses several challenges, one of which being a complex geometry and a longer duration of the prehydrodynamic stage. Therefore, existing fluid dynamic models for heavy-ion collisions at the RHIC Beam Energy Scan energies rely on rather complex initial states, such as urqmd cascade or multifluid dynamics. In this study, we show that functionally simpler, nondynamical initial states can be employed for the fluid-dynamical simulations of Au-Au collisions at sNN=27 and 62.4 GeV. We adapt the initial states based on the Monte Carlo Glauber model (glissando 2) and T_A T_B ansatz based on reduced thickness (trento p=0), extended into the longitudinal direction and finite baryon density. We find that both initial states, when coupled to a three-dimensional event-by-event viscous fluid dynamic + cascade model, result in an overall fair reproduction of basic experimental data: pseudorapidity distributions, transverse momentum spectra, and elliptic flow, at both collision energies. This is rather surprising given that the T_A T_B ansatz is functionally similar to the EKRT and IP-Glasma models, which are successful at much larger energies and rely on a partonic picture of the initial state.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
103
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
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UT code for WoS article
000627565700004
EID of the result in the Scopus database
2-s2.0-85102937508