Enhancement of baryon-to-meson ratios around jets as a signature of medium response

Abstract

We present a unique signal of jet-induced medium excitations: the enhancement of baryon-to-meson ratios around the quenched jets.To illustrate this, we study jet-particle correlations and the distributions of jet-induced identified particles with respect to the jet direction in Pb+Pb collisions at the LHC via a multi-phase transport model.We find a strong enhancement of baryon-to-meson ratios for associated particles at intermediate transverse momentum around the triggered jets in Pb+Pb collisions relative to p+p collisions, due to the coalescence of jet-excited medium partons.Since the lost energy from jets can diffuse to large angles, such baryon-to-meson-ratio enhancement is more pronounced for larger relative distance from the jet axis.We argue that the experimental confirmation of the enhancement of jet-induced baryon-to-meson ratios around the jets will provide an unambiguous evidence for the medium response to jet quenching in heavy-ion collisions.

6 pages, 3 figures

References in corpus (12)

• The theory and phenomenology of perturbative QCD based jet quenching
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
• Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation
• The wake of a quark moving through a strongly-coupled $\mathcal{N}=4$ supersymmetric Yang-Mills plasma
• Sonic booms and diffusion wakes generated by a heavy quark in thermal AdS/CFT
• Sensitivity of jet substructure to jet-induced medium response
• The sound produced by a fast parton in the quark-gluon plasma is a "crescendo"
• Medium modification of $\gamma$-jet fragmentation functions in Pb+Pb collisions at LHC
• Universal Flow-Driven Conical Emission in Ultrarelativistic Heavy-Ion Collisions
• Discovering partonic rescattering in light nucleus collisions
• Cone size dependence of jet suppression in heavy-ion collisions
• Mach cones in the quark-gluon plasma: Viscosity, speed of sound, and effects of finite source structure

Cited by in corpus (9)

• The Present and Future of QCD
• 3D structure of jet-induced diffusion wake in an expanding quark-gluon plasma
• Linear Boltzmann transport for jet propagation in the quark-gluon plasma: Inelastic processes and jet modification
• Medium Response and Jet-Hadron Correlations in Relativistic Heavy-Ion Collisions
• Flavor hierarchy of parton energy loss in quark-gluon plasma from a Bayesian analysis
• Hard jet substructure in a multistage approach
• An improved linear Boltzmann transport model for hadron and jet suppression in ultrarelativistic heavy-ion collisions
• System-size dependence of $\gamma$-jet modifications in heavy-ion collisions
• Emergence of thermal recoil jets in high-energy heavy-ion collisions