Constraints on jet quenching from a multi-stage energy-loss approach

TL;DR

This paper introduces a multi-stage jet evolution model within the JETSCAPE framework, unifying different phases of jet shower development in quark-gluon plasma and matching multiple experimental observables.

Contribution

It presents a novel multi-stage approach for jet evolution that captures distinct phases based on virtuality, and incorporates medium response and cone-size dependence in jet quenching modeling.

Findings

Successful simultaneous description of leading hadron and jet observables

Implementation of medium response via recoil prescription

Analysis of cone-size dependence of jet energy loss

Abstract

We present a multi-stage model for jet evolution through a quark-gluon plasma within the JETSCAPE framework. The multi-stage approach in JETSCAPE provides a unified description of distinct phases in jet shower contingent on the virtuality. We demonstrate a simultaneous description of leading hadron and integrated jet observables as well as jet $v_n$ using tuned parameters. Medium response to the jet quenching is implemented based on a weakly-coupled recoil prescription. We also explore the cone-size dependence of jet energy loss inside the plasma.