In a recent Physical Review Letters article, Xin-Nian Wang from NSD’s Nuclear Theory program and his collaborators explored the 3D structure of the jet-induced Mach cone excitation in Pb+Pb collisions at LHC through theoretical simulations of the jet transport inside a hydrodynamically expanding QGP. They found that the associated diffusion wake of the Mach cone produces a unique valley structure on top of the ridge from multiple parton scattering in soft hadron correlation with respect to photon-tagged jets in azimuthal angle and rapidity.

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A New Dimension to the Jet-induced Mach Cone in the Subatomic QGP Droplets
April 2, 2023 / Berkeley Lab Nuclear Science Division News