Počet záznamů: 1  

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

  1. 1.
    0484310 - ÚJF 2018 RIV US eng J - Článek v odborném periodiku
    Acharya, S. - Adamová, Dagmar - Bielčík, J. - Bielčíková, Jana - Broz, M. - Contreras, J. G. - Horák, D. - Křížek, Filip - Kučera, Vít - Kushpil, Svetlana - Lavička, R. - Mareš, Jiří A. - Petráček, V. - Šumbera, Michal - Vaňát, Tomáš - Závada, Petr … celkem 1011 autorů
    J/psi Elliptic Flow in Pb-Pb Collisions at root s(NN)=5.02 TeV.
    Physical Review Letters. Roč. 119, č. 24 (2017), č. článku 242301. ISSN 0031-9007. E-ISSN 1079-7114
    Grant CEP: GA MŠMT(CZ) LG15052
    Institucionální podpora: RVO:68378271 ; RVO:61389005
    Klíčová slova: ALICE collaboration * heavy ion collisions * LHC
    Obor OECD: Nuclear physics; Particles and field physics (FZU-D)
    Impakt faktor: 8.839, rok: 2017

    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.
    Trvalý link: http://hdl.handle.net/11104/0279445

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.