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.

arXiv comment6 pages, 3 figures

References in corpus (47)

• FastJet user manual
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• HIJING 1.0: A Monte Carlo Program for Parton and Particle Production in High Energy Hadronic and Nuclear Collisions
• Parton coalescence and antiproton/pion anomaly at RHIC
• Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
• Elliptic flow at large transverse momenta from quark coalescence
• Formation of superdense hadronic matter in high energy heavy-ion collisions
• ZPC 1.0.1: a parton cascade for ultrarelativistic heavy ion collisions
• Parton coalescence at RHIC
• Collective Flow signals the Quark Gluon Plasma
• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• The theory and phenomenology of perturbative QCD based jet quenching
• Quark Coalescence for Charmed Mesons in Ultrarelativistic Heavy-Ion Collisions
• Partonic effects on the elliptic flow at relativistic heavy ion collisions
• Medium-Induced QCD Cascade: Democratic Branching and Wave Turbulence
• Waking the Colored Plasma
• Energy dependence of charged pion, proton and anti-proton transverse momentum spectra for Au+Au collisions at \sqrt{s_NN} = 62.4 and 200 GeV
• Jet Structure in Heavy Ion Collisions
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
• Effects of jet-induced medium excitation in $\gamma$-hadron correlation in A+A collisions
• Full jet in quark-gluon plasma with hydrodynamic medium response
• Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation
• Vacuum-like jet fragmentation in a dense QCD medium
• 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
• Probing the hardest branching of jets in heavy ion collisions
• Multiple jets and $\gamma$-jet correlation in high-energy heavy-ion collisions
• Sensitivity of jet substructure to jet-induced medium response
• Effects of jet quenching on the hydrodynamical evolution of quark-gluon plasma
• Deviation from quark-number scaling of the anisotropy parameter v_2 of pions, kaons, and protons in Au+Au collisions at sqrt(s_NN) = 200 GeV
• The sound produced by a fast parton in the quark-gluon plasma is a "crescendo"
• Suppression of the high $p_T$ charged hadron $R_{AA}$ at the LHC
• Medium modification of $\gamma$-jet fragmentation functions in Pb+Pb collisions at LHC
• Universal Flow-Driven Conical Emission in Ultrarelativistic Heavy-Ion Collisions
• Momentum transport away from a jet in an expanding nuclear medium
• Jet suppression from small to intermediate to large radius
• Flavor hierarchy of jet quenching in relativistic heavy-ion collisions
• Nuclear modification of jet shape for inclusive jets and $\gamma$-jets at the LHC energies
• Discovering partonic rescattering in light nucleus collisions
• Cone size dependence of jet suppression in heavy-ion collisions
• Jet modification with medium recoil in quark-gluon plasma
• Mach cones in the quark-gluon plasma: Viscosity, speed of sound, and effects of finite source structure
• Interplay between Mach cone and radial expansion and its signal in $\gamma$-jet events
• Measurement of angular and momentum distributions of charged particles within and around jets in Pb+Pb and $pp$ collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector
• Jet-medium interaction and conformal relativistic fluid dynamics
• Mach cones in viscous heavy-ion collisions
• Towards detailed tomography of high energy heavy-ion collisions by $\gamma$-jet

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