J/psi Elliptic Flow 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%2F61389005%3A_____%2F17%3A00484310" target="_blank" >RIV/61389005:_____/17:00484310 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/17:00484310 RIV/68407700:21340/17:00318158

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevLett.119.242301" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.119.242301</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.119.242301" target="_blank" >10.1103/PhysRevLett.119.242301</a>

Result language

angličtina

Original language name

J/psi Elliptic Flow in Pb-Pb Collisions at root s(NN)=5.02 TeV

Original language description

We report a precise measurement of the J/psi elliptic flow in Pb-Pb collisions at root s(NN) = 5.02 TeV with the ALICE detector at the LHC. The J/psi mesons are reconstructed at midrapidity (|y| < 0.9) in the dielectron decay channel and at forward rapidity (2.5 < y < 4.0) in the dimuon channel, both down to zero transverse momentum. At forward rapidity, the elliptic flow v(2) of the J/psi is studied as a function of the transverse momentum and centrality. A positive v(2) is observed in the transverse momentum range 2<p(T)<8GeV/c in the three centrality classes studied and confirms with higher statistics our earlier results at root s(NN) = 2.76 TeV in semicentral collisions. At midrapidity, the J/psi v(2) is investigated as a function of the transverse momentum in semicentral collisions and found to be in agreement with the measurements at forward rapidity. These results are compared to transport model calculations. The comparison supports the idea that at low p(T) the elliptic flow of the J/psi originates from the thermalization of charm quarks in the deconfined medium but suggests that additional mechanisms might be missing in the models.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10304 - Nuclear physics

Project

<a href="/en/project/LG15052" target="_blank" >LG15052: Investigation of the Microworld using the CERN Infrastructure</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

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

119

Issue of the periodical within the volume

24

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

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UT code for WoS article

000418191800004

EID of the result in the Scopus database

2-s2.0-85038376257