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SUMMARY:Collisions in AdS and the thermalisation of heavy-ion collisions -
  Wilke van der Schee (Utrecht University)
DTSTART:20131024T120000Z
DTEND:20131024T130000Z
UID:TALK47635@talks.cam.ac.uk
CONTACT:Dr Dorigoni
DESCRIPTION:The motivation of this seminar is to understand the thermalisa
 tion of heavy ion collisions using AdS/CFT. For this I will present two mo
 dels\, the first being a somewhat simplistic boost-invariant radially expa
 nding approach. The simplicity\, however\, allowed us to solve the model a
 ll the way till the final particle spectra\, with an interesting compariso
 n with experimental data.\nOn the more theoretical side we simulated colli
 ding planar gravitational shock waves. This gives rise to rich and interes
 ting dynamics\; wide shocks come to a full stop and expand hydrodynamicall
 y\, as was previously found by Chesler and Yaffe. High energy collisions (
 corresponding to thin shocks) pass through each other\, after which a plas
 ma forms in the middle\, within a proper time 1/T\, with T the local tempe
 rature at that time.\nIn the end I will discuss recent results where we st
 udied the influence of microscopic structure in the longitudinal direction
 . This has implications for both fluctuations in nucleus-nucleus collision
 s\, and for recent proton-lead collisions at at LHC.\n\n
LOCATION:Potter Room (first floor\, Pav. B)
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