Statistical Modelling of the Multiplicity Distribution. The Weighted GMD model at LHC energies

Abstract

The multiplicity distribution is described in terms of models incorporating the stochastic branching of quarks and gluons, along with fluctuations in their production. Results show a reasonable description of charged-particle multiplicity distributions measured in pp collisions by the CMS collaboration at centre-of-mass collision energies of 0.9, 2.36, and 7 TeV for |η| < 0.5, 1.0, 1.5, 2.0, and 2.4. A prediction for 13 TeV is also given.