Centrality dependence of Lévy-stable two-pion Bose-Einstein correlations in √sNN=200 GeV Au + Au collisions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00617340" target="_blank" >RIV/68378271:_____/24:00617340 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.110.064909" target="_blank" >https://doi.org/10.1103/PhysRevC.110.064909</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.110.064909" target="_blank" >10.1103/PhysRevC.110.064909</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Centrality dependence of Lévy-stable two-pion Bose-Einstein correlations in √sNN=200 GeV Au + Au collisions

Popis výsledku v původním jazyce

The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in sNN=200GeV Au+Au collisions at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The data are well represented by Lévy-stable source distributions. The extracted source parameters are the correlation-strength parameter λ, the Lévy index of stability α, and the Lévy-scale parameter R as a function of transverse mass mT and centrality. The λ(mT) parameter is constant at larger values of mT, but decreases as mT decreases. The Lévy-scale parameter R(mT) decreases with mT and exhibits proportionality to the length scale of the nuclear overlap region. The Lévy exponent α(mT) is independent of mT within uncertainties in each investigated centrality bin, but shows a clear centrality dependence. At all centralities, the Lévy exponent α is significantly different from that of Gaussian (α=2) or Cauchy (α=1) source distributions.

Název v anglickém jazyce

Centrality dependence of Lévy-stable two-pion Bose-Einstein correlations in √sNN=200 GeV Au + Au collisions

Popis výsledku anglicky

The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in sNN=200GeV Au+Au collisions at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The data are well represented by Lévy-stable source distributions. The extracted source parameters are the correlation-strength parameter λ, the Lévy index of stability α, and the Lévy-scale parameter R as a function of transverse mass mT and centrality. The λ(mT) parameter is constant at larger values of mT, but decreases as mT decreases. The Lévy-scale parameter R(mT) decreases with mT and exhibits proportionality to the length scale of the nuclear overlap region. The Lévy exponent α(mT) is independent of mT within uncertainties in each investigated centrality bin, but shows a clear centrality dependence. At all centralities, the Lévy exponent α is significantly different from that of Gaussian (α=2) or Cauchy (α=1) source distributions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

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

110

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

064909

Kód UT WoS článku

001399981700001

EID výsledku v databázi Scopus

2-s2.0-85213397131