Speaker
Koichi Murase
(The University of Tokyo)
Description
The *hydrodynamic fluctuations* are thermal fluctuations arising
in the event-by-event hydrodynamic evolution of the system, and they
have effects on heavy-ion observables such as the higher harmonics
$v_n$. To quantitatively determine the matter properties such as the
shear viscosity and the relaxation times, it is needed to take into
account the hydrodynamic fluctuations as well as the initial-state
fluctuations.
The hydrodynamic fluctuations appear in the constitutive
equation, and their power spectrum is determined by the
fluctuation-dissipation relation. We implement the hydrodynamic
fluctuations in our dynamical model consisting of the initialization
models such as Monte-Carlo KLN model, causal dissipative hydrodynamics,
and the subsequent hadronic cascades. By analyzing the hadron
distributions obtained by massive event-by-event calculations with both
of the hydrodynamic fluctuations and the initial-state fluctuations, we
investigate the effects of the hydrodynamic fluctuations on the
observables such as the higher harmonics.
Author
Koichi Murase
(The University of Tokyo)
Co-author
Tetsufumi Hirano
(Sophia Univ)
