Characteristics of multi-particle production in proton-proton collisions at √s=7 TeV are studied as a function of the charged-particle multiplicity (Nch). The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |η|<2.4 and transverse momentum pT>0.25 GeV. Jets are reconstructed from charged-particles only and required to have pT>5 GeV. The distributions of jet pT, average pT of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of Nch.
Generated at Thursday, 12. December 2019 02:35PM