Critical net-baryon fluctuations in an expanding system

In this work we study the consequences of a longitudinal Bjorken expansion and Hubble-like temperature cooling scenario on $1+1$ dimensional nonlinear model diffusive dynamics fluctuations in net-baryon density. The equilibrium behavior is fully encoded dependence susceptibilities crossover side both vicinity assumed location critical point at vanishing baryochemical potential line with lattice quantum chromodynamics calculations. We demonstrate great sensitivity fluctuation observables dynamics, particular diffusion length freeze-out conditions. While signals are visible region broadened by expansion, too small can strongly reduce amplitude signals. propose to search for significant anticorrelations baryons intermediate rapidity experimentally map out fourth-order cumulant, which, presence (and only its presence), has pronounced minimum rapidities.