https://doi.org/10.1140/epjc/s10052-010-1493-1
Relating multihadron production in hadronic and nuclear collisions
1
Department of Physics, The University of Texas at Arlington, Arlington, TX, 76019, USA
2
Department of Physics, CERN, 1211, Geneva 23, Switzerland
3
Department of Physics, Wayne State University, Detroit, MI, 48202, USA
4
TH Division, Department of Physics, CERN, 1211, Geneva 23, Switzerland
Received:
21
May
2010
Revised:
19
September
2010
Published online:
11
November
2010
The energy-dependence of charged particle mean multiplicity and pseudorapidity density at midrapidity measured in nucleus–nucleus and (anti)proton–proton collisions are studied in the entire available energy range. The study is performed using a model, which considers the multiparticle production process according to the dissipating energy of the participants and their types, namely a combination of the constituent quark picture together with Landau relativistic hydrodynamics. The model reveals interrelations between the variables under study measured in nucleus–nucleus and nucleon–nucleon collisions. Measurements in nuclear reactions are shown to be well reproduced by the measurements in pp/
interactions and the corresponding fits are presented. Different observations in other types of collisions are discussed in the framework of the proposed model. Predictions are made for measurements at the forthcoming LHC energies.
© Springer-Verlag / Società Italiana di Fisica, 2010
