Investigation of K+ K- interactions via femtoscopy in Pb-Pb collisions at √sNN=2.76 TeV at the CERN Large Hadron Collider

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00574208" target="_blank" >RIV/61389005:_____/23:00574208 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00574208

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.107.054904" target="_blank" >https://doi.org/10.1103/PhysRevC.107.054904</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.107.054904" target="_blank" >10.1103/PhysRevC.107.054904</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of K+ K- interactions via femtoscopy in Pb-Pb collisions at √sNN=2.76 TeV at the CERN Large Hadron Collider

Popis výsledku v původním jazyce

Femtoscopic correlations of nonidentical charged kaons (K+K-) are studied in Pb-Pb collisions at a center-of -mass energy per nucleon-nucleon collision root sNN = 2.76 TeV by ALICE at the CERN Large Hadron Collider. One-dimensional K+K- correlation functions are analyzed in three centrality classes and eight intervals of particle-pair transverse momentum. The LednickATIN SMALL LETTER Y WITH ACUTE and Luboshitz interaction model used in the K+K- analysis includes the final-state Coulomb interactions between kaons and the final-state interaction through a0(980) and f0(980) resonances. The mass of f0(980) and coupling were extracted from the fit to K+K- correlation functions using the femtoscopic technique. The measured mass and width of the f0(980) resonance are consistent with other published measurements. The height of the phi(1020) meson peak present in the K+K- correlation function rapidly decreases with increasing source radius, qualitatively in agreement with an inverse volume dependence. A phenomenological fit to this trend suggests that the phi(1020) meson yield is dominated by particles produced directly from the hadronization of the system. The small fraction subsequently produced by final-state interactions could not be precisely quantified with data presented in this paper and will be assessed in future work.

Název v anglickém jazyce

Investigation of K+ K- interactions via femtoscopy in Pb-Pb collisions at √sNN=2.76 TeV at the CERN Large Hadron Collider

Popis výsledku anglicky

Femtoscopic correlations of nonidentical charged kaons (K+K-) are studied in Pb-Pb collisions at a center-of -mass energy per nucleon-nucleon collision root sNN = 2.76 TeV by ALICE at the CERN Large Hadron Collider. One-dimensional K+K- correlation functions are analyzed in three centrality classes and eight intervals of particle-pair transverse momentum. The LednickATIN SMALL LETTER Y WITH ACUTE and Luboshitz interaction model used in the K+K- analysis includes the final-state Coulomb interactions between kaons and the final-state interaction through a0(980) and f0(980) resonances. The mass of f0(980) and coupling were extracted from the fit to K+K- correlation functions using the femtoscopic technique. The measured mass and width of the f0(980) resonance are consistent with other published measurements. The height of the phi(1020) meson peak present in the K+K- correlation function rapidly decreases with increasing source radius, qualitatively in agreement with an inverse volume dependence. A phenomenological fit to this trend suggests that the phi(1020) meson yield is dominated by particles produced directly from the hadronization of the system. The small fraction subsequently produced by final-state interactions could not be precisely quantified with data presented in this paper and will be assessed in future work.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

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

107

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

054904

Kód UT WoS článku

000999209700001

EID výsledku v databázi Scopus

2-s2.0-85162242592