Mach cones in viscous heavy-ion collisions

Abstract

The formation of Mach cones is studied in a full $(3+1)$-dimensional setup of ultrarelativistic heavy-ion collisions, considering a transverse and longitudinal expanding medium at Relativistic Heavy-Ion Collider energies. For smooth initial conditions and central collisions the jet-medium interaction is investigated using high-energy jets and various values of the ratio of shear viscosity over entropy density, $\eta /s$. For small viscosities, the formation of Mach cones is proven, whereas for larger viscosities the characteristic structures smear out and vanish eventually. The formation of a double-peak structure both in a single- and in a multiple-jet event is discussed.

10 pages, 9 figures, as published in PRC

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Cited by in corpus (16)

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• Linear Boltzmann Transport for Jet Propagation in the Quark-Gluon Plasma: Elastic Processes and Medium Recoil
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
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• Medium modification of $\gamma$-jet fragmentation functions in Pb+Pb collisions at LHC
• Interplay between Mach cone and radial expansion and its signal in $\gamma$-jet events
• A hydrodynamic approach to boost invariant free streaming
• Medium Response and Jet-Hadron Correlations in Relativistic Heavy-Ion Collisions
• Enhancement of baryon-to-meson ratios around jets as a signature of medium response
• Disappearance of the Mach Cone in heavy ion collisions
• Jet shape and redistribution of the lost energy from jets in Pb+Pb collisions at the LHC in a multiphase transport model
• Response of a baryon-charged medium to energetic partons
• Anisotropic Flow and Jet Quenching in Relativistic Nuclear Collisions
• Impact of the energy loss spatial profile and shear viscosity to entropy density ratio for the Mach cone vs. head shock signals produced by a fast moving parton in a quark-gluon plasma
• Color-electric conductivity in a viscous quark-gluon plasma
• The effect of momentum deposition during fireball evolution on flow anisotropy