Nuclear Physics & RIKEN Theory Seminar
"Reconstruction of freeze-out surface and flow in heavy-ion collisions"
Presented by Yi Yin, University of Illinois Chicago
Friday, August 9, 2013, 2 pm
Small Seminar Room, Bldg. 510
Hosted by: Shu Lin
In this talk, I will present our analytic study of longitudinal expansion in heavy-ion collisions. We first apply the maximum entropy method to reconstruct freeze-out surface from particle spectrum measured by the experiment. We then take the output of the reconstruction as the initial condition to evolve the system backward, from freeze-out to early time, using the general analytic solution to 1+1 ideal hydrodynamic equations. We compare the resulting early time longitudinal temperature and flow profile with Bjorken-like initial conditions used by hydrodynamic simulations and with Landau's "full stopping" picture.