INTERMITTENCY IN MULTIPARTICLE PRODUCTION AT LHC ENERGIES

Abstract

This thesis presents four sets of investigations in relation to intermittency in multiparticle production at LHC energies. By processing data from the CMS detector obtained from the CERN Open Data Portal, an experimental measurement of the intermittency strength was made, and it was found that it decreases with increasing collision energy. Multifractal analysis revealed increasing complexity of the data with increasing collision energy. Analysis with the modified Chou-Yang model and the numerical QCD model revealed that as collision energy increases, the mean number of clusters formed increases, likely via a larger number of initial gluons produced. The latter investigation also suggested that gluon branching increases in prominence at higher energies. Altogether, the investigations in this thesis suggest that new emergent mechanisms occur in multiparticle production at the TeV energy scale.