Pseudorapidity distributions of produced charged hadrons in pp collisions at RHIC and LHC energies

Details Pseudorapidity distributions of produced charged hadrons in pp collisions at RHIC and LHC energies Pseudorapidity distributions of produced charged hadrons in pp collisions at RHIC and LHC energies

2011-06-18

arxiv.org/abs/1106.3636v1

EPL 95, 61001 (2011)

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 5 figures, 1 table

Scientific paper

The energy dependence of charged-hadron production in proton-proton collisions at RHIC and LHC energies is investigated in a nonequilibrium-statistical relativistic diffusion model (RDM) with three sources for particle production. Calculated charged-hadron pseudorapidity distributions for pp at RHIC energies of sqrt(s) = 0.2 and 0.41 TeV, and at LHC energies of 0.9, 2.36 and 7 TeV are optimized with respect to the available data. Predictions for 14 TeV are made. The central source arising from gluon-gluon collisions becomes the major origin of particle production at LHC energies. The midrapidity dip is essentially determined by the interplay of the three sources.

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