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CERN Heavy Ion Forum

Collisions in AdS and the thermalisation of heavy-ion collisions

by Wilke van der Schee (University of Utrecht)

Tuesday, 8 October 2013 from to (Europe/Zurich)
at CERN ( 4-3-006 - TH Conference Room )
Description Numerically simulating colliding planar gravitational shock waves in AdS gives rise to rich and interesting dynamics. Wide shocks come to a full stop and expand hydrodynamically, as was previously found by Chesler and Yaffe. High energy collisions (corresponding to thin shocks) pass through each other, after which a plasma forms in the middle, quite akin to heavy-ion collisions. After an initial stage of far-from-equilibrium evolution the pressures become positive and are governed by hydrodynamics within a proper time 1/T, with T the local temperature at that time.

In the end I will discuss recent results where we were able to perform a somewhat similar simulation for boost-invariant central collisions and matched this with recent hydrodynamic and hadronic cascade codes, which enables an interesting comparison with transverse spectra for light particles.
Poster
Slides
Organised by Y. Foka, U. Wiedemann
Videoconference Rooms
Collisions_in_AdS_and_the_thermalisation_of_heavy-ion_collisi
Name
Collisions_in_AdS_and_the_thermalisation_of_heavy-ion_collisi
Description
Numerically simulating colliding planar gravitational shock waves in AdS gives rise to rich and interesting dynamics. Wide shocks come to a full stop and expand hydrodynamically, as was previously found by Chesler and Yaffe. High energy collisions (corresponding to thin shocks) pass through each other, after which a plasma forms in the middle, quite akin to heavy-ion collisions. After an initial stage of far-from-equilibrium evolution the pressures become positive and are governed by hydrodynamics within a proper time 1/T, with T the local temperature at that time. In the end I will discuss recent results where we were able to perform a somewhat similar simulation for boost-invariant central collisions and matched this with recent hydrodynamic and hadronic cascade codes, which enables an interesting comparison with transverse spectra for light particles.
Extension
109275879
Owner
Urs Wiedemann
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