Jet reshaping in heavy-ion collisions

TL;DR

This paper introduces a novel method for incorporating medium effects into jet structures by modifying splitting functions during parton showers, potentially explaining experimental angular correlations observed at RHIC.

Contribution

It presents a new formalism for medium modifications in jet evolution, applicable to heavy-ion collisions, with implications for understanding jet quenching phenomena.

Findings

Potential to reproduce RHIC angular correlation data

New formalism for medium effects in jet showers

Applicability to LHC heavy-ion collision studies

Abstract

We propose a new implementation of medium effects in jet structures in which a modification of the splitting function is included at every step in the typical final state parton shower. Although the main application of this new formalism will be at the LHC, it is interesting that, in the presence of a trigger bias to small number of splittings, non-trivial angular dependences could appear with shapes similar to those measured experimentally at RHIC in high-pT particle correlations.