Relatorio tecnico

Centrality, rapidity and transverse momentum dependence of J=y suppression in Pb-Pb collisions at psNN = 2:76TeV (2013)

• Authors:
  • Abelev, B - Lawrence Livermore National Laboratory (LLNL)
  • Prado, Caio Alves Garcia
  • Bregant, Marco
  • Cosentino, Mauro Rogério
  • Barros, Gabriel Oliveira Valeriano de
  • Domenicis Gimenez, Diogenes
  • Figueredo, Marcel Araujo Silva
  • Jahnke, Cristiane
  • Fernandes, Caio Lagana
  • Godoy, Denise Aparecida Moreira de
  • Munhoz, Marcelo Gameiro
  • Silva, Antonio Carlos Oliveira da
  • Oliveira Filho, Elienos Pereira de
  • Suaide, Alexandre Alarcon do Passo
  • Szanto de Toledo, Alejandro
• USP affiliated authors: MUNHOZ, MARCELO GAMEIRO - IF ; SUAIDE, ALEXANDRE ALARCON DO PASSO - IF ; TOLEDO, ALEJANDRO SZANTO DE - IF
• Unidade: IF
• Subjects: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS; CROMODINÂMICA QUÂNTICA
• Language: Inglês
• Abstract: The inclusive J=y nuclear modification factor (RAA) in Pb-Pb collisions at psNN = 2:76TeVhas been measured by ALICE as a function of centrality in the e +e- decay channel at mid-rapidity (jyj < 0:8) and as a function of centrality, transverse momentum and rapidity in the m +m- decay channel at forward-rapidity (2:5 < y < 4). The J=y yields measured in Pb-Pb are suppressed compared to those in pp collisions scaled by the number of binary collisions. The RAA integrated over a centrality range corresponding to 90% of the inelastic Pb-Pb cross section is 0:72 0:06(stat:) 0:10(syst:) at mid-rapidity and 0:57 0:01(stat:) 0:09(syst:) at forward-rapidity. At low transverse momentum, significantly larger values of RAA are measured at forward-rapidity compared to measurements at lower energy. These features suggest that a contribution to the J=y yield originates from charm quarks (re)combination in the deconfined partonic medium.
• Imprenta:
  • Publisher place: São Paulo
  • Date published: 2013


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How to cite

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• ABNT

  ABELEV, B et al. Centrality, rapidity and transverse momentum dependence of J=y suppression in Pb-Pb collisions at psNN = 2:76TeV. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1311.0214.pdf. Acesso em: 23 abr. 2024. , 2013

• APA

  Abelev, B., Prado, C. A. G., Bregant, M., Cosentino, M. R., Barros, G. O. V. de, Domenicis Gimenez, D., et al. (2013). Centrality, rapidity and transverse momentum dependence of J=y suppression in Pb-Pb collisions at psNN = 2:76TeV. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1311.0214.pdf

• NLM

  Abelev B, Prado CAG, Bregant M, Cosentino MR, Barros GOV de, Domenicis Gimenez D, Figueredo MAS, Jahnke C, Fernandes CL, Godoy DAM de, Munhoz MG, Silva ACO da, Oliveira Filho EP de, Suaide AA do P, Szanto de Toledo A. Centrality, rapidity and transverse momentum dependence of J=y suppression in Pb-Pb collisions at psNN = 2:76TeV [Internet]. 2013 ;[citado 2024 abr. 23 ] Available from: http://lanl.arxiv.org/pdf/1311.0214.pdf

• Vancouver

  Abelev B, Prado CAG, Bregant M, Cosentino MR, Barros GOV de, Domenicis Gimenez D, Figueredo MAS, Jahnke C, Fernandes CL, Godoy DAM de, Munhoz MG, Silva ACO da, Oliveira Filho EP de, Suaide AA do P, Szanto de Toledo A. Centrality, rapidity and transverse momentum dependence of J=y suppression in Pb-Pb collisions at psNN = 2:76TeV [Internet]. 2013 ;[citado 2024 abr. 23 ] Available from: http://lanl.arxiv.org/pdf/1311.0214.pdf

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