Neutral pion production at midrapidity in pp and Pb–Pb collisions at √ sNN TeV

Abelev, Betty; Adam, Jaroslav; Adamová, Dagmar; Aggarwal, Madan M.; Agnello, Michelangelo; Agostinelli, Andrea; Agrawal, Nikita; Aguilar Salazar, Saul; Ahammed, Zubayer; Ahmad, Nazeer; Alme, Johan; Erdal, Hege Austrheim; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Altinpinar, Sedat; Djuvsland, Øystein; Fehlker, Dominik; Haaland, Øystein Senneset; Huang, Meidana; Kanaki, Kalliopi; Liu, Lijiao; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Skjerdal, Kyrre; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Yang, Shiming; Zhou, Zhuo; Arsene, Ionut Christian; Bätzing, Paul Christoph; Dordic, Olja; Lindal, Svein; Mahmood, Sohail Musa; Milosevic, Jovan; Qvigstad, Henrik; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Langøy, Rune; Lien, Jørgen; Ahmed, Ijaz; Ahn, Sang Un; Ahn, Sul-Ah; Aiola, Salvatore; ALICE, Collaboration
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http://hdl.handle.net/11250/2448132
Date
2014
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European Physical Journal C 2014, 74:3108(10):1-20   10.1140/epjc/s10052-014-3108-8
Abstract
Invariant yields of neutral pions at midrapidity in the transversemomentum range 0.6 < pT < 12 GeV/cmeasured in Pb–Pb collisions at √sNN = 2.76 TeV are presented for six centrality classes. The pp reference spectrumwas measured in the range 0.4 < pT < 10 GeV/c at the same centerof-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.
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European Physical Journal C
Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal