Nuclear modification factor of charged particles and light-flavour hadrons in p--Pb collisions measured by ALICE

TL;DR

This paper investigates how high-momentum charged particles and light-flavor hadrons are affected in p--Pb collisions to understand the role of nuclear effects in particle suppression observed in heavy-ion collisions.

Contribution

It provides measurements of the nuclear modification factor for identified hadrons in p--Pb collisions using ALICE data, helping distinguish initial and final state effects.

Findings

Nuclear modification factors indicate the presence of nuclear effects.

Results suggest initial state effects are significant in p--Pb collisions.

Comparison with Pb--Pb data sheds light on particle suppression mechanisms.

Abstract

The hot and dense strongly interacting Quark-Gluon Plasma (sQGP) created in ultra-relativistic heavy-ion collisions can be probed by studying high-$p_{\rm T}$ particle production and parton energy loss. Similar measurements performed in p-Pb collisions may help in determining whether initial or final state nuclear effects play a role in the observed suppression of hadron production at high-$p_{\rm T}$ in Pb--Pb collisions. By examining the nuclear modification factors through the comparison of identified hadron yields in different collision systems one can gain insight into particle production mechanisms and nuclear effects.