Anisotropic Flow of Charged Particles in Pb-Pb Collisions at root S-NN=5.02 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00459209" target="_blank" >RIV/68378271:_____/16:00459209 - isvavai.cz</a>

Alternative codes found

RIV/61389005:_____/16:00459209 RIV/68407700:21340/16:00301045

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevLett.116.132302" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.116.132302</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.116.132302" target="_blank" >10.1103/PhysRevLett.116.132302</a>

Result language

angličtina

Original language name

Anisotropic Flow of Charged Particles in Pb-Pb Collisions at root S-NN=5.02 TeV

Original language description

We report the first results of elliptic (v2), triangular (v3), and quadrangular (v4) flow of charged particles in Pb-Pb collisions at a center-of-mass energy per nucleon pair of root s(NN) = 5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurements are performed in the central pseudorapidity region vertical bar n vertical bar < 0.8 and for the transverse momentum range 0.2 < p(T) < 5 GeV/c. The anisotropic flow is measured using two-particle correlations with a pseudorapidity gap greater than one unit and with the multiparticle cumulant method. Compared to results from Pb-Pb collisions at root s(NN) = 2.76 TeV, the anisotropic flow coefficients v2, v3, and v4 are found to increase by (3.0 +/- 0.6)%, (4.3 +/- 1.4)%, and (10.2 +/- 3.8)%, respectively, in the centrality range 0%-50%. This increase can be attributed mostly to an increase of the average transverse momentum between the two energies. The measurements are found to be compatible with hydrodynamic model calculations. This comparison provides a unique opportunity to test the validity of the hydrodynamic picture and the power to further discriminate between various possibilities for the temperature dependence of shear viscosity to entropy density ratio of the produced matter in heavy-ion collisions at the highest energies.nKeywords

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Physical Review Letters

ISSN

0031-9007

e-ISSN

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Volume of the periodical

116

Issue of the periodical within the volume

13

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

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UT code for WoS article

000373202000005

EID of the result in the Scopus database

2-s2.0-84963641155