Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at root s_NN =200GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00243080" target="_blank" >RIV/68407700:21340/16:00243080 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevC.93.051902" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.93.051902</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.93.051902" target="_blank" >10.1103/PhysRevC.93.051902</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at root s_NN =200GeV

Popis výsledku v původním jazyce

Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4} and v4{Ψ2} for identified particles (π ±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at root s_NN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm }/(Nq) n/2 versus transverse kinetic energies (KET )/Nq ] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities ɛn{ΨPPm} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

Název v anglickém jazyce

Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at root s_NN =200GeV

Popis výsledku anglicky

Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4} and v4{Ψ2} for identified particles (π ±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at root s_NN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm }/(Nq) n/2 versus transverse kinetic energies (KET )/Nq ] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities ɛn{ΨPPm} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

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

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

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physical Review C

ISSN

0556-2813

e-ISSN

—

Svazek periodika

93

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000376921400001

EID výsledku v databázi Scopus

2-s2.0-84971291485