Speaker
Grégoire PIHAN
(CNRS)
Description
Fluctuation observables in heavy-ion collisions probe the constituents, the chemical freeze-out and the transport properties of strongly interacting matter, and signal phase transitions. We present results for second order fluctuations of the conserved charges in QCD from a stochastic diffusion model in a Bjorken-type expansion background. The impact of the cross couplings between the three different currents is included and phenomenological consequences for experimental observables which affect the determination of the freeze-out curve and the search for the QCD critical point are discussed.
