204 articles – 1878 references  [version française]
HAL: in2p3-00744553, version 1

Detailed view  Export this paper
Physical Review Letters 110 (2013) 032301
Pseudorapidity density of charged particles in p-Pb collisions at sqrt(sNN) = 5.02 TeV
B. Abelev, L. Aphecetche1, A. Baldisseri2, Guillaume Batigne1, I. Belikov3, A.A.E. Bergognon1, H. Borel2, M. Bregant1, J. Castillo Castellanos2, J.L. Charvet2, c. Cheshkov4, B. Cheynis4, H. Delagrange1, O. Driga1, L. Ducroux4, M. Estienne1, M. Germain1, C. Geuna2, J.-Y. Grossiord4, M. Guilbaud4, C. Kuhn3, A. Lardeux1, G. Martınez Garcıa1, A. Mas1, L. Massacrier1, P. Pillot1, C. Roy3, X. Sanchez Castro3, S. Senyukov3, A. Shabetai1, D. Stocco1, R. Tieulent4, A. Uras4, Y. Zoccarato4, N. Arbor5, G. Conesa Balbastre5, J. Faivre5, C. Furget5, R. Guernane5, S. Kox5, J.S. Real5, C. Silvestre5, Y.W. Baek6, V. Barret6, N. Bastid6, P. Crochet6, P. Dupieux6, R. Ichou6, X. Lopez6, F. Manso6, M. Marchisone6, S. Porteboeuf-Houssais6, P. Rosnet6, B. Vulpescu6, X. Zhang6
For the ALICE collaboration(s)
(2013)

The charged-particle pseudorapidity density measured over 4 units of pseudorapidity in non-single-diffractive (NSD) p-Pb collisions at a centre-of-mass energy per nucleon pair sqrt(sNN) = 5.02 TeV is presented. The average value at midrapidity is measured to be 16.81 \pm 0.71 (syst.), which corresponds to 2.14 \pm 0.17 (syst.) per participating nucleon. This is 16% lower than in NSD pp collisions interpolated to the same collision energy, and 84% higher than in d-Au collisions at sqrt(sNN) = 0.2 TeV. The measured pseudorapidity density in p-Pb collisions is compared to model predictions, and provides new constraints on the description of particle production in high-energy nuclear collisions.
1:  SUBATECH - Laboratoire SUBATECH Nantes
2:  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
3:  DRS-IPHC - Département Recherches Subatomiques
4:  IPNL - Institut de Physique Nucléaire de Lyon
5:  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
6:  LPC - Laboratoire de Physique Corpusculaire [Clermont-Ferrand]
Physics/Nuclear Experiment
Fulltext link: 
http://fr.arXiv.org/abs/1210.3615