Measurement of the distributions of event-by-event flow harmonics in lead-lead collisions at sNN = 2.76 TeV with the ATLAS detector at the LHC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00424793" target="_blank" >RIV/68378271:_____/13:00424793 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/JHEP11(2013)183" target="_blank" >http://dx.doi.org/10.1007/JHEP11(2013)183</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP11(2013)183" target="_blank" >10.1007/JHEP11(2013)183</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the distributions of event-by-event flow harmonics in lead-lead collisions at sNN = 2.76 TeV with the ATLAS detector at the LHC

Popis výsledku v původním jazyce

The distributions of event-by-event harmonic flow coefficients vn for n=2-4 are measured in sNN=2.76 TeV Pb+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using charged particles with transverse momentum pT > 0.5 GeV and in the pseudorapidity range |?| < 2.5 in a dataset of approximately 7 ?b1 recorded in 2010. The shapes of the vn distributions are described by a two-dimensional Gaussian function for the underlying flow vector in central collisions for v2 and over most of the measured centrality range for v3 and v4. Significant deviations from this function are observed for v2 in mid-central and peripheral collisions, and a small deviation is observed for v3 in mid-central collisions. It is shown that the commonly used multi-particle cumulants are insensitive to the deviations for v2. The vn distributions are also measured independently for charged particles with 0.5 < pT < 1 GeV and pT > 1 GeV.

Název v anglickém jazyce

Measurement of the distributions of event-by-event flow harmonics in lead-lead collisions at sNN = 2.76 TeV with the ATLAS detector at the LHC

Popis výsledku anglicky

The distributions of event-by-event harmonic flow coefficients vn for n=2-4 are measured in sNN=2.76 TeV Pb+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using charged particles with transverse momentum pT > 0.5 GeV and in the pseudorapidity range |?| < 2.5 in a dataset of approximately 7 ?b1 recorded in 2010. The shapes of the vn distributions are described by a two-dimensional Gaussian function for the underlying flow vector in central collisions for v2 and over most of the measured centrality range for v3 and v4. Significant deviations from this function are observed for v2 in mid-central and peripheral collisions, and a small deviation is observed for v3 in mid-central collisions. It is shown that the commonly used multi-particle cumulants are insensitive to the deviations for v2. The vn distributions are also measured independently for charged particles with 0.5 < pT < 1 GeV and pT > 1 GeV.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/LG13009" target="_blank" >LG13009: Mezinárodní experiment ATLAS-CERN</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2013

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

57

Strana od-do

1-57

Kód UT WoS článku

000328332400001

EID výsledku v databázi Scopus

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