Measurement of leading charged-particle jet properties in p--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with ALICE

TL;DR

This paper reports on the measurement of leading charged-particle jet properties in p--Pb collisions at 5.02 TeV, providing insights into cold nuclear matter effects and particle production mechanisms.

Contribution

It presents the first measurement of mean charged-particle multiplicity and fragmentation functions of jets in p--Pb collisions at this energy.

Findings

Results are consistent with some theoretical models.

Jet properties show modifications compared to pp collisions.

Data helps understand cold nuclear matter effects.

Abstract

Jets are collimated sprays of particles produced from the fragmentation and hadronization of hard-scattered partons in high energy hadronic and nuclear collisions. Jet properties are sensitive to details of parton showering processes and are expected to be modified in the presence of a dense partonic medium. Measurement of intra-jet properties in p--Pb collisions will help to investigate cold nuclear matter effects and enrich our current understanding of particle production in such collision systems. In this work, we present the measurement of leading charged-particle jet properties, namely the mean charged-particle multiplicity and the fragmentation functions, in the range of jet $p_{\rm T}$ 10 -- 100 GeV/c at midrapidity in minimum bias p--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with ALICE. Results are compared with theoretical model predictions.