Measurement of flow harmonics with multi-particle cumulants in Pb+Pb collisions at root(s_NN) = 2.76 TeV with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10290835" target="_blank" >RIV/00216208:11320/14:10290835 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1140/epjc/s10052-014-3157-z" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-014-3157-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-014-3157-z" target="_blank" >10.1140/epjc/s10052-014-3157-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of flow harmonics with multi-particle cumulants in Pb+Pb collisions at root(s_NN) = 2.76 TeV with the ATLAS detector

Popis výsledku v původním jazyce

ATLAS measurements of the azimuthal anisotropy in lead-lead collisions at SQUARE ROOTsNN = 2.76 TeV are shown using a dataset of approximately 7?bMINUS SIGN 1 collected at the LHC in 2010. The measurements are performed for charged particles with transversemomenta 0.5 < pT < 20 GeV and in the pseudorapidity range |?| < 2.5. The anisotropy is characterized by the Fourier coefficients, vn, of the charged-particle azimuthal angle distribution for n = 2-4. The Fourier coefficients are evaluated using multi-particle cumulants calculated with the generating function method. Results on the transverse momentum, pseudorapidity and centrality dependence of the vn coefficients are presented. The elliptic flow, v2, is obtained from the two-, four-, six- and eight-particle cumulants while higher-order coefficients, v3 and v4, are determined with two- and four-particle cumulants. Flow harmonics vn measured with four-particle cumulants are significantly reduced compared to the measurement involving t

Název v anglickém jazyce

Measurement of flow harmonics with multi-particle cumulants in Pb+Pb collisions at root(s_NN) = 2.76 TeV with the ATLAS detector

Popis výsledku anglicky

ATLAS measurements of the azimuthal anisotropy in lead-lead collisions at SQUARE ROOTsNN = 2.76 TeV are shown using a dataset of approximately 7?bMINUS SIGN 1 collected at the LHC in 2010. The measurements are performed for charged particles with transversemomenta 0.5 < pT < 20 GeV and in the pseudorapidity range |?| < 2.5. The anisotropy is characterized by the Fourier coefficients, vn, of the charged-particle azimuthal angle distribution for n = 2-4. The Fourier coefficients are evaluated using multi-particle cumulants calculated with the generating function method. Results on the transverse momentum, pseudorapidity and centrality dependence of the vn coefficients are presented. The elliptic flow, v2, is obtained from the two-, four-, six- and eight-particle cumulants while higher-order coefficients, v3 and v4, are determined with two- and four-particle cumulants. Flow harmonics vn measured with four-particle cumulants are significantly reduced compared to the measurement involving t

Druh

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

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

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Svazek periodika

74

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

28

Strana od-do

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Kód UT WoS článku

000347169908080

EID výsledku v databázi Scopus

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