Response of a baryon-charged medium to energetic partons

TL;DR

This paper investigates how energetic partons affect a baryon-rich medium in low-energy heavy-ion collisions, focusing on hydrodynamic distortions and differences in hadron emission spectra.

Contribution

It introduces a hydrodynamic model with dynamical sources to study medium response to energetic partons at finite baryon chemical potential.

Findings

Distortions in energy and baryon densities caused by partons

Qualitative differences in jet modifications for mesons and protons

Medium response influences hadron emission spectra

Abstract

We explore the response to energetic partons of a baryon-charged medium produced in low energy heavy-ion collisions in which the partonic energy loss rate is expected to depend on both temperature and baryon chemical potential. The energy and momentum deposited by the partons are described by dynamical sources added to hydrodynamic equations of motion. We study the distortions of various hydrodynamic quantities, especially the energy and baryon densities, induced by energetic partons plowing through the medium. By studying the contribution from this medium response to the emission spectra of several identified hadron species we identify qualitative differences between the jet-induced modifications for mesons and net protons.