https://doi.org/10.1051/epjconf/201714105002
Interplay between collective expansion and Mach cone
1 Department of Physics, Sophia University, Tokyo 102-8554, Japan
2 Institute of Particle Physics and Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University, Wuhan, 430079, China
a e-mail: hirano@sophia.ac.jp
b e-mail: yasuki.tachibana@mail.ccnu.edu.cn
c e-mail: michito0605@eagle.sophia.ac.jp
Published online: 12 April 2017
By using a hybrid dynamical model which describes space-time evolution ofthe bulk medium, (mini-)jet propagation and interactions between medium and (mini-)jets, we study hydrodynamic responses to (mini-)jet propagation in high energy nuclear collisions. When an energetic jet traverses the bulk matter, it loses its energy into the matter and forms a Mach-cone like structure. On the other hand, the bulk matter expands radially due to pressure gradient. As a result, there happens an interplay between radial expansion and the Mach cone. We discuss possible phenomena and observables related with this in asymmetric gamma-jet events. We also discuss phenomena in which many mini-jets propagate the bulk matter at once in an event and calculate higher harmonics of azimuthal angle distribution.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
