Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6 < pT < 12 GeV/c measured in Pb–Pb collisions at √sNN = 2.76 TeV are presented for six centrality classes. The pp reference spectrum was measured in the range 0.4 < pT < 10 GeV/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.
Titolo: | Neutral pion production at midrapidity in pp and Pb–Pb collisions at √sNN = 2.76 TeV |
Autori: | |
Data di pubblicazione: | 2014 |
Rivista: | |
Abstract: | Invariant yields of neutral pions at midrapidity in the transverse momentum range 0.6 < pT < 12 GeV/c measured in Pb–Pb collisions at √sNN = 2.76 TeV are presented for six centrality classes. The pp reference spectrum was measured in the range 0.4 < pT < 10 GeV/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. |
Handle: | http://hdl.handle.net/11368/2818123 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1140/epjc/s10052-014-3108-8 |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
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