Idioma:

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

B Abelev Caio Alves Garcia Prado; Marco Bregant; Mauro Rogério Cosentino; Gabriel Oliveira Valeriano de Barros; Diogenes Domenicis Gimenez; Marcel Araujo Silva Figueredo; Cristiane Jahnke; Caio Lagana Fernandes; Denise Aparecida Moreira de Godoy; Marcelo Gameiro Munhoz; Antonio Carlos Oliveira da Silva; Elienos Pereira de Oliveira Filho; Alexandre Alarcon do Passo Suaide; Alejandro Szanto de Toledo

São Paulo 2013

Acesso online

Enviar para

Título:
Centrality, rapidity and transverse momentum dependence of J=y suppression in Pb-Pb collisions at psNN = 2:76TeV
Autor: B Abelev
Caio Alves Garcia Prado; Marco Bregant; Mauro Rogério Cosentino; Gabriel Oliveira Valeriano de Barros; Diogenes Domenicis Gimenez; Marcel Araujo Silva Figueredo; Cristiane Jahnke; Caio Lagana Fernandes; Denise Aparecida Moreira de Godoy; Marcelo Gameiro Munhoz; Antonio Carlos Oliveira da Silva; Elienos Pereira de Oliveira Filho; Alexandre Alarcon do Passo Suaide; Alejandro Szanto de Toledo
Assuntos: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS; CROMODINÂMICA QUÂNTICA
Notas: arXiv.1311.0214
Descrição: 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.
Editor: São Paulo
Data de criação/publicação: 2013
Formato: 25 p.
Idioma: Inglês

Links

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

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

São Paulo 2013

Buscando em bases de dados remotas. Favor aguardar.