Speaker
Masakiyo Kitazawa
(Osaka University)
Description
We investigate time evolution of higher-order cumulants
of bulk fluctuations of conserved charges in the hadronic
stage in heavy ion collisions.
The dynamical evolution of the non-Gaussian fluctuations
are modeled by the diffusion master equation. In this
model, we show that the fourth-order cumulant is suppressed
compared with the recently observed second-order one
at ALICE.
Significance of various cumulants as functions of
rapidity acceptance as experimental observables to probe
dynamical history of fireballs are emphasized.
Author
Masakiyo Kitazawa
(Osaka University)
Co-author
Masayuki Asakawa
(Osaka University)
