Speaker
Prof.
Hanzhong Zhang
(Institute of Particle Physics, Central China Normal University)
Description
The effect of initial state fluctuations on jet energy loss in relativistic heavy-ion collisions is studied in a 2+1 dimension ideal hydrodynamic model. Within the next-to-leading order perturbative QCD description of
hard scatterings, we find that a jet loses slightly more energy in the expanding quark-gluon plasma if the latter is described by the hydrodynamic evolution with fluctuating initial conditions compared to the case with smooth initial conditions. A detailed analysis indicates that this is mainly due to the positive correlation between the fluctuation in the production probability of parton jets from initial nucleon-nucleon hard collisions and the fluctuation in the medium density along the path traversed by the jet. This effect is larger in non-central than in central relativistic heavy ion collisions and also for jet energy loss that has a linear than a quadratic dependence on its path length in the medium.
Author
Prof.
Hanzhong Zhang
(Institute of Particle Physics, Central China Normal University)
Co-authors
Prof.
Che Ming Ko
(Cyclotron Institute and Department of Physics and Astronomy, Texas A$\&$M University)
Dr
Taesoo Song
(Cyclotron Institute, Texas A$\&$M University)
