Recent developments on HYDJET/PYQUEN event generators and novel jet quenching observables at LHC

TL;DR

This paper reviews recent advancements in PYQUEN, HYDJET, and HYDJET++ event generators, highlighting their improved modeling of jet quenching and heavy ion collision phenomena at the LHC.

Contribution

It introduces updates to HYDJET++ with detailed thermal and flow modeling, enhancing simulation accuracy for jet quenching observables in heavy ion collisions.

Findings

Enhanced simulation of thermal hadronic states

Improved modeling of collective flow effects

Application to novel jet quenching observables

Abstract

The recent developments on PYQUEN, HYDJET and HYDJET++ event generators are presented. The partonic energy loss model PYQUEN is implemented as the modification of the "standard" jet event obtained with the generator of hadron-hadron interactions PYTHIA. HYDJET and HYDJET++ are the Monte-Carlo event generators for the simulation of relativistic heavy ion AA collisions considered as a superposition of the soft, hydro-type state and the hard, multi-parton fragmentation. HYDJET++ model is the development and continuation of HYDJET generator, and it includes more detailed treatment of the "thermal" hadronic state generated on the chemical and thermal freeze-out hypersurfaces (represented by the parameterization of relativistic hydrodynamics with preset freeze-out conditions), collective flow effects and decays of hadronic resonances. Some applications of above models to novel jet quenching observables are discussed.