Light (anti)nuclei production in Pb-Pb collisions at √sNN=5.02 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00575583" target="_blank" >RIV/61389005:_____/23:00575583 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00575583

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.107.064904" target="_blank" >https://doi.org/10.1103/PhysRevC.107.064904</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.107.064904" target="_blank" >10.1103/PhysRevC.107.064904</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Light (anti)nuclei production in Pb-Pb collisions at √sNN=5.02 TeV

Popis výsledku v původním jazyce

The measurement of the production of deuterons, tritons and 3He and their antiparticles in Pb-Pb collisions at root sNN = 5.02 TeV is presented in this article. The measurements are carried out at midrapidity (|y| < 0.5) as a function of collision centrality using the ALICE detector. The pT-integrated yields, the coalescence parameters and the ratios to protons and antiprotons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different center-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as already shown in previous fluctuation analyses. However, a different size of the correlation volume is required to describe the proton yields in the same data sets. The coalescence model can describe this suppression by the fact that the wave functions of the nuclei are large and the fireball size starts to become comparable and even much smaller than the actual nucleus at low multiplicities.

Název v anglickém jazyce

Light (anti)nuclei production in Pb-Pb collisions at √sNN=5.02 TeV

Popis výsledku anglicky

The measurement of the production of deuterons, tritons and 3He and their antiparticles in Pb-Pb collisions at root sNN = 5.02 TeV is presented in this article. The measurements are carried out at midrapidity (|y| < 0.5) as a function of collision centrality using the ALICE detector. The pT-integrated yields, the coalescence parameters and the ratios to protons and antiprotons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different center-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as already shown in previous fluctuation analyses. However, a different size of the correlation volume is required to describe the proton yields in the same data sets. The coalescence model can describe this suppression by the fact that the wave functions of the nuclei are large and the fireball size starts to become comparable and even much smaller than the actual nucleus at low multiplicities.

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

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

064904

Kód UT WoS článku

001026288300004

EID výsledku v databázi Scopus

2-s2.0-85163714237