Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s} = 7$ TeV are studied as a function of the charged-particle multiplicity ($N_\text{ch}$). 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 $|\eta| < 2.4$ and transverse momentum $p_\text{T} > 0.25$ GeV. Jets are reconstructed from charged-particles only and required to have $p_\text{T} > 5$ GeV. The distributions of jet $p_\text{T}$, average $p_\text{T}$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_\text{ch}$.
Generated at Thursday, 12. December 2019 02:35PM