Comparative study of charged multiplicities and moments inppcollisions ats=7  TeVin the forward region at the LHC

Abstract

Charged particle multiplicities in proton-proton collisions measured in the LHCb detector at a center-ofmass energy of ffiffi ffi s p ¼ 7 TeV in different windows of pseudorapidity, η, in the forward region of the vertex detector are studied by using different statistical distributions. Three distributions are compared with the data, and the moments of the distributions are calculated. The data constituting two sets, one of minimum bias events and another of hard QCD events, are analyzed. The distributions considered derive from different functional forms based on underlying interaction dynamics. The analysis complements the multiplicity analysis done by LHCb in terms of Monte Carlo event generators. The present analysis is from a different perspective, using statistical distributions.

Statistical Scrutiny of Particle Spectra in ep Collisions

“…energies in full phase space and also in restricted phase space windows. The results of the study are published in [27][28][29][30][31][32]. The present work is the first attempt to analyse the data from different hadronic energy regions in the deep inelastic scattering (DIS) at the HERA.…”