7–8 Mar 2014
University of Toledo
US/Eastern timezone

Free-streaming limit of pre-equilibrium evolution in heavy-ion collisions

8 Mar 2014, 11:30
25m
4009 McMaster Hall (University of Toledo)

4009 McMaster Hall

University of Toledo

2801 W Bancroft St, Toledo, OH 43606

Speaker

Mr Jia Liu (The Ohio State University)

Description

Pre-equilibrium evolution of heavy-ion collision is an open problem. Now most hydrodynamic simulations for heavy-ion assume the system thermalizes immediately after the collision. In our study, we explore the free-streaming limit and assume the system thermalizes at the end of free-streaming. At the end of free-streaming, by solving collisionless Boltzmann equation, we find the gluon distribution function and thus calculate energy momentum tensor. Then we demand the system to be thermalized at this “thermalization time" and do Landau matching to get a consistent set of initial conditions. We use initial conditions corresponding to different thermalization times to run VISHNew2+1 hydrodynamic code. Finally we construct the anisotropies from azimuthal transverse energy distribution to qualify how the anisotropy flows change with different thermalization times.

Author

Mr Jia Liu (The Ohio State University)

Co-authors

Mr Chun Shen (The Ohio State University) Prof. Ulrich Heinz (The Ohio State University)

Presentation materials