Pseudorapidity distributions of produced charged hadrons in pp collisions at RHIC and LHC energies
Institut für Theoretische Physik der Universität Heidelberg - Philosophenweg 16, D-69120 Heidelberg, Germany, EU
Accepted: 1 August 2011
The energy dependence of charged-hadron production in proton-proton collisions at RHIC and LHC energies is investigated in a non-equilibrium statistical relativistic diffusion model (RDM) with three sources for particle production. Calculated charged-hadron pseudorapidity distributions for pp at RHIC energies of 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.
PACS: 13.85.Ni – Inclusive production with identified hadrons / 24.10.Jv – Relativistic models / 24.60.-k – Statistical theory and fluctuations
© EPLA, 2011