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Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN−−−√=5.02 Tev with the ATLAS detector

M Aaboud Marisílvia Donadelli; José Luis La Rosa Navarro; Marco Aurelio Lisboa Leite

European Journal Physical C Bristol v. 78, n. 784, p. 1-23, 2018

Berlim 2018

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  • Título:
    Prompt and non-prompt J/ψ elliptic flow in Pb+Pb collisions at sNN−−−√=5.02 Tev with the ATLAS detector
  • Autor: M Aaboud
  • Marisílvia Donadelli; José Luis La Rosa Navarro; Marco Aurelio Lisboa Leite
  • Assuntos: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS; LHC
  • É parte de: European Journal Physical C Bristol v. 78, n. 784, p. 1-23, 2018
  • Notas: Disponível em: <https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-018-6243-9>. Acesso em: 03 dez. 2018
  • Descrição: The elliptic flow of prompt and non-prompt J/ψ was measured in the dimuon decay channel in Pb+Pb collisions at sNN−−−√=5.02 TeV with an integrated luminosity of 0.42 nb−1 with the ATLAS detector at the LHC. The prompt and non-prompt signals are separated using a two-dimensional simultaneous fit of the invariant mass and pseudo-proper decay time of the dimuon system from the J/ψ decay. The measurement is performed in the kinematic range of dimuon transverse momentum and rapidity 9<pT<30 GeV , |y|<2 , and 0–60% collision centrality. The elliptic flow coefficient, v2 , is evaluated relative to the event plane and the results are presented as a function of transverse momentum, rapidity and centrality. It is found that prompt and non-prompt J/ψ mesons have non-zero elliptic flow. Prompt J/ψ v2 decreases as a function of pT , while for non-prompt J/ψ it is, with limited statistical significance, consistent with a flat behaviour over the studied kinematic region. There is no observed dependence on rapidity or centrality.
  • Editor: Berlim
  • Data de criação/publicação: 2018
  • Formato: 23 p.
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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