Light nuclei collectivity from √sNN = 3 GeV Au+Au collisions at RHIC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00559783" target="_blank" >RIV/61389005:_____/22:00559783 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.physletb.2022.136941" target="_blank" >https://doi.org/10.1016/j.physletb.2022.136941</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2022.136941" target="_blank" >10.1016/j.physletb.2022.136941</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Light nuclei collectivity from √sNN = 3 GeV Au+Au collisions at RHIC

Popis výsledku v původním jazyce

In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of this scaling and dominance of baryonic interactions is found for identified hadron collective flow measurements in root s(NN) = 3 GeV Au+Au collisions. In this paper, we report measurements of the first- and second-order azimuthal anisotropic parameters, v(1) and v(2), of light nuclei (d, t, He-3, He-4) produced in root s(NN) = 3 GeV Au+Au collisions at the STAR experiment. An atomic mass number scaling is found in the measured v(1) slopes of light nuclei at mid-rapidity. For the measured v(2) magnitude, a strong rapidity dependence is observed. Unlike v(2) at higher collision energies, the v(2) values at mid-rapidity for all light nuclei are negative and no scaling is observed with the atomic mass number. Calculations by the Jet AA Microscopic Transport Model (JAM), with baryonic mean-field plus nucleon coalescence, are in good agreement with our observations, implying baryonic interactions dominate the collective dynamics in 3 GeV Au+Au collisions at RHIC.

Název v anglickém jazyce

Light nuclei collectivity from √sNN = 3 GeV Au+Au collisions at RHIC

Popis výsledku anglicky

In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of this scaling and dominance of baryonic interactions is found for identified hadron collective flow measurements in root s(NN) = 3 GeV Au+Au collisions. In this paper, we report measurements of the first- and second-order azimuthal anisotropic parameters, v(1) and v(2), of light nuclei (d, t, He-3, He-4) produced in root s(NN) = 3 GeV Au+Au collisions at the STAR experiment. An atomic mass number scaling is found in the measured v(1) slopes of light nuclei at mid-rapidity. For the measured v(2) magnitude, a strong rapidity dependence is observed. Unlike v(2) at higher collision energies, the v(2) values at mid-rapidity for all light nuclei are negative and no scaling is observed with the atomic mass number. Calculations by the Jet AA Microscopic Transport Model (JAM), with baryonic mean-field plus nucleon coalescence, are in good agreement with our observations, implying baryonic interactions dominate the collective dynamics in 3 GeV Au+Au collisions at RHIC.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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 Letters. B

ISSN

0370-2693

e-ISSN

1873-2445

Svazek periodika

827

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

136941

Kód UT WoS článku

000820935000010

EID výsledku v databázi Scopus

2-s2.0-85124035544