/ Experiment-Nucl arXiv:1210.3615

Pseudorapidity density of charged particles p-Pb collisions at sqrt(sNN) = 5.02 TeV

Pages: 16

Abstract: 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.

Note: * Temporary entry *; 16 pages, 2 figures, authors at page 11, submitted to PRL

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Запись создана 2012-11-01, последняя модификация 2014-01-30

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