Specific Heat of Nuclear Medium Probed by KS0 Mesons Produced in Au+Au Collisions at RHIC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3AN0000005" target="_blank" >RIV/61389005:_____/22:N0000005 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1134/S1063778823010568" target="_blank" >https://doi.org/10.1134/S1063778823010568</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S1063778823010568" target="_blank" >10.1134/S1063778823010568</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Specific Heat of Nuclear Medium Probed by KS0 Mesons Produced in Au+Au Collisions at RHIC

Popis výsledku v původním jazyce

The energy and centrality dependence of KS0-meson spectra measured by the STAR Collaboration at RHIC in Au+Au collisions over a wide range of √sNN=7.7-200 GeV was studied in the z-scaling approach. The scaling function ψ(z) was constructed and the self-similarity of KS0-meson production was confirmed. This observation is consistent with an abrupt decrease of the model parameter cAuAu from the value of 0.16 at √sNN=7.7 and 11.5 GeV to about 0.09 at the top RHIC energy. The scaling parameter is interpreted as a specific heat of the produced medium. The non-trivial dependence of cAuAu on the collision energy shows that KS0 meson is much more sensitive to properties of nuclear medium than a non-identified negative hadron. The irregularities in the behavior of the specific heat parameter cAuAu are considered as a possible indication of phase transition in nuclear matter.

Název v anglickém jazyce

Specific Heat of Nuclear Medium Probed by KS0 Mesons Produced in Au+Au Collisions at RHIC

Popis výsledku anglicky

The energy and centrality dependence of KS0-meson spectra measured by the STAR Collaboration at RHIC in Au+Au collisions over a wide range of √sNN=7.7-200 GeV was studied in the z-scaling approach. The scaling function ψ(z) was constructed and the self-similarity of KS0-meson production was confirmed. This observation is consistent with an abrupt decrease of the model parameter cAuAu from the value of 0.16 at √sNN=7.7 and 11.5 GeV to about 0.09 at the top RHIC energy. The scaling parameter is interpreted as a specific heat of the produced medium. The non-trivial dependence of cAuAu on the collision energy shows that KS0 meson is much more sensitive to properties of nuclear medium than a non-identified negative hadron. The irregularities in the behavior of the specific heat parameter cAuAu are considered as a possible indication of phase transition in nuclear matter.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Physics of Atomic Nuclei

ISSN

1063-7788

e-ISSN

1562-692X

Svazek periodika

85

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

7

Strana od-do

981-987

Kód UT WoS článku

001052544800055

EID výsledku v databázi Scopus

2-s2.0-85152799273