Inclusive, prompt and non-prompt J/psi production at mid-rapidity in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV

Submission Date: 
27/04/2015
Article Information
Submission Form
System: 
Pb-Pb
Energy: 
2.76 TeV
Abstract Plain Text: 

The pT dependence of the nuclear modification factor RAA and the centrality dependence of the
average transverse momentum <pT> have been measured by ALICE for Pb-Pb collision at √sNN =
 2.76 TeV in the e+e− decay channel at mid-rapidity (|y| < 0.8) for inclusive J/y. The <pT> seen
in Pb-Pb is significantly smaller than the one observed for pp collisions at the same centre-of-mass
energy. A clear indication for an increase of RAA towards lower pT is found. The fraction of non
prompt J/y fB has been determined in the pT region 1.5 < pT < 10 GeV/c in three centrality
intervals. No significant centrality dependence of fB is observed. The RAA of non-prompt J/y is
discussed and compared to model predictions.