Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6<pT<12GeV/ c measured in Pb–Pb collisions at √s(NN)=2.76 TeV are presented for six centrality classes. The pp reference spectrum was measured in the range 0.4<pT<10GeV/ c at the same center-of-mass energy. The nuclear modification factor, RAA , shows a suppression of neutral pions in central Pb–Pb collisions by a factor of up to about 8−10 for 5≲pT≲7GeV/ c. The presented measurements are compared with results at lower center-of-mass energies and with theoretical calculations.

Neutral pion production at midrapidity in pp and Pb–Pb collisions at √s (NN) = 2.76 TeV

DE CARO, ANNALISA;DE GRUTTOLA, DANIELE;DE PASQUALE, Salvatore;FUSCO GIRARD, Mario;PAGANO, PAOLA;VIRGILI, Tiziano;CALIVA', Alberto
2014-01-01

Abstract

Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4583471
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