Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00644537" target="_blank" >RIV/68378271:_____/25:00644537 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10511331

Výsledek na webu

<a href="https://hdl.handle.net/11104/0374422" target="_blank" >https://hdl.handle.net/11104/0374422</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/d46f-yl4n" target="_blank" >10.1103/d46f-yl4n</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Popis výsledku v původním jazyce

A measurement is presented of elliptic (v2​) and triangular (v3​) azimuthal anisotropy coefficients for charged particles produced in Pb+Pb collisions at √sNN=5.02 TeV using a dataset corresponding to an integrated luminosity of 0.44 nb−1 collected with the ATLAS detector at the LHC in 2018. The values of v2​ and v3​ are measured for charged particles over a wide range of transverse momentum (pT​), 1-400 GeV, and Pb+Pb collision centrality, 0-60%, using the scalar product and multiparticle cumulant methods. These methods are sensitive to event-by-event fluctuations and nonflow effects in the measurements of azimuthal anisotropies. Positive values of v2​ are observed up to a pT​ of approximately 100 GeV from both methods across all centrality intervals. Positive values of v3​ are observed up to approximately 25 GeV using both methods, though the application of the three-subevent technique to the multiparticle cumulant method leads to significant changes at the highest pT​. At high pT​ (pT​⪆10 GeV), charged particles are dominantly from jet fragmentation.

Název v anglickém jazyce

Azimuthal anisotropies of charged particles with high transverse momentum in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

Popis výsledku anglicky

A measurement is presented of elliptic (v2​) and triangular (v3​) azimuthal anisotropy coefficients for charged particles produced in Pb+Pb collisions at √sNN=5.02 TeV using a dataset corresponding to an integrated luminosity of 0.44 nb−1 collected with the ATLAS detector at the LHC in 2018. The values of v2​ and v3​ are measured for charged particles over a wide range of transverse momentum (pT​), 1-400 GeV, and Pb+Pb collision centrality, 0-60%, using the scalar product and multiparticle cumulant methods. These methods are sensitive to event-by-event fluctuations and nonflow effects in the measurements of azimuthal anisotropies. Positive values of v2​ are observed up to a pT​ of approximately 100 GeV from both methods across all centrality intervals. Positive values of v3​ are observed up to approximately 25 GeV using both methods, though the application of the three-subevent technique to the multiparticle cumulant method leads to significant changes at the highest pT​. At high pT​ (pT​⪆10 GeV), charged particles are dominantly from jet fragmentation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

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

112

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

34

Strana od-do

024910

Kód UT WoS článku

001569375300001

EID výsledku v databázi Scopus

2-s2.0-105027886520