| Issue |
EPL
Volume 95, Number 6, September 2011
|
|
|---|---|---|
| Article Number | 61001 | |
| Number of page(s) | 6 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/95/61001 | |
| Published online | 01 September 2011 | |
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
Received:
21
April
2011
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
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