/ nucl-ex CERN-PH-EP-2013-135

Multiplicity Dependence of Pion, Kaon, Proton and Lambda Production in p-Pb Collisions at $\sqrt{s_{NN}}$ = 5.02 TeV

Published in: Phys.Lett.
Year: 2014
Vol.: B728
Page No: 25-38
Pages: 14
Year: 2014

Abstract: In this Letter, comprehensive results on $\pi^{\pm}, K^{\pm}, K^0_S$, $p(\bar{p})$ and $\Lambda (\bar{\Lambda})$ production at mid-rapidity (0 < $y_{CMS}$ < 0.5) in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV, measured by the ALICE detector at the LHC, are reported. The transverse momentum distributions exhibit a hardening as a function of event multiplicity, which is stronger for heavier particles. This behavior is similar to what has been observed in pp and Pb--Pb collisions at the LHC. The measured $p_T$ distributions are compared to results at lower energy and with predictions based on QCD-inspired and hydrodynamic models.

Note: 23 pages, 7 captioned figures, 5 tables, author from page 19 to page 23, new version

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DOI: 10.1016/j.physletb.2013.11.020