D mesons suppression in PbPb collisions at sqrts_NN = 2.76 TeV measured by ALICE

2012/10/08 by del Valle, Z. Conesa
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex)

paper · doi:10.48550/arxiv.1210.2163

Abstract

The measurement of the prompt charm mesons D0, D+, D*+, and their antiparticles, in PbPb collisions at the LHC, at a centre-of-mass energy sqrts_NN=2.76 TeV, with the ALICE detector, using 2010 data, is presented. The RAA of the three meson species show a suppression of a factor 3-4, for transverse momenta larger than 5 GeV/c, in the 20% most central collisions. The suppression is reduced for peripheral collisions. The results are compared with those of charged particles, charged pions, and non-prompt Jpsi, and also with theoretical calculations.

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