Conveners
Bulk (Fluctuation): Parallel 2
- Maria Paola Lombardo (INFN)
We generalize the Cooper-Frye particlization routine to make it suitable for describing event-by-event fluctuations in heavy-ion collisions. This is achieved via a newly developed subensemble method, allowing to incorporate the effects of exact global conservation of multiple charges, thermal smearing, and resonance decays on fluctuations of various particle numbers. Utilizing viscous...
In the study of QCD phase structure and search of the QCD phase boundary and critical point, higher-order cumulants of conserved quantities are proposed as promising observables and have been studied extensively both experimentally and theoretically. For $4^{th}$-order cumulants it is predicted that there will be a non-monotonic energy dependence trend. For $5^{th}$- and $6^{th}$-order...
Cumulants of net charge fluctuations and their correlations at vanishing
values of the conserved charge chemical potentials ($\mu_{B,Q,S}=0$)
provide the basis for Taylor expansions of various thermodynamic observables
at non-zero values of the chemical potentials. At $\mu_{B,Q,S}=0$ continuum
extrapolated results for these cumulants can directly be compared
with charge fluctuations...
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...
The Beam Energy Scan program at RHIC (Relativistic Heavy Ion Collider)
is searching for the QCD critical point or a first order phase transition. The main signal for the
critical point is the kurtosis of the distribution of proton yields obtained on an event by
event basis where one expects a peak at the critical point. However, its exact behavior is
still an open question due to...
