Connecting the underlying event with jet properties in pp collisions at $\sqrt{s}$ = 7 TeV with the ALICE experiment

TL;DR

This study investigates how the properties of charged particle jets in proton-proton collisions at 7 TeV vary with underlying event activity, providing insights into soft event characteristics and nucleon structure.

Contribution

It introduces a method to analyze jet fragmentation properties as a function of underlying multiplicity, linking soft event features to nucleon structure models.

Findings

Jet properties vary with underlying multiplicity.

Comparison with Monte Carlo models shows agreement and discrepancies.

Provides a new approach to study soft-hard event correlations.

Abstract

A preliminary study of the fragmentation properties of charged particle jets as a function of the Underlying Multiplicity (UM) is presented. The UM is defined such that it can be related to the global soft event characteristics by excluding the contribution due to jet fragmentation. The measurement of jet properties as a function of the UM might be connected to the impact parameter dependence of the transverse nucleon structure as described via Generalized Parton Distributions. The results from the studies are compared to Monte Carlo (MC) models.