Q-PYTHIA - a Monte Carlo implementation for jet quenching

TL;DR

This paper introduces Q-PYTHIA, a Monte Carlo tool that models jet quenching by modifying parton shower splitting functions, enhancing the simulation of jet properties in heavy-ion collisions.

Contribution

It presents a novel implementation of jet quenching in standard Monte Carlo generators through modifications of splitting functions, improving the simulation of jet observables.

Findings

Effective simulation of jet quenching phenomena.

Enhanced modeling of reconstructed jet properties.

Compatibility with existing Monte Carlo frameworks.

Abstract

RHIC experiments have established jet quenching as a fundamental tool in the study of hot matter in heavy-ion collisions. The energy reached is enough for high-pT inclusive particle studies and one- or two-particle correlations up to pT= 10-20 GeV. The corresponding data are successfully described by a formalism based on radiative energy losses. This formalism needs, however, to be improved for more exclusive observables, in particular for the reconstructed jet properties. Jet reconstruction is a new branch in heavy-ion collisions with very high expectations as a tool for the characterization of the medium properties. We present here an implementation of the jet quenching phenomena based on a modification at the level of the splitting functions in parton showers in standard, general purpose, Monte Carlos as PYTHIA or HERWIG.