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SUMMARY:Transport coefficients in the pre-equilibrium stage
DTSTART;VALUE=DATE-TIME:20230530T070000Z
DTEND;VALUE=DATE-TIME:20230530T072500Z
DTSTAMP;VALUE=DATE-TIME:20261010T074602Z
UID:indico-contribution-373@indico.ipb.ac.rs
DESCRIPTION:Speakers: Tuomas Lappi (University of Jyväskylä)\nThe initia
 l pre-equilibrium stage of a heavy ion collision can have a significant im
 pact on hard probes of the quark gluon plasma such as jets and heavy quark
 s. In weak coupling QCD the properties of this pre-equilibrium phase can b
 e understood by effective kinetic theory\, which can follow the developmen
 t of the system from the glasma to hydrodynamics.  We compute the jet quen
 ching parameter q̂ and the heavy quark momentum diffusion coefficient usi
 ng the effective kinetic theory this bottom-up isotropization phase. To a 
 first approximation these coefficients are similar to a thermal system wit
 h the same energy density. However\, unlike the thermal case these coeffic
 ients are also anisotropic. They are also enhanced in the earliest overocc
 upied phase and suppressed in the later\, underoccupied\, stage of thermal
 ization.\n\n[1] Heavy quark diffusion coefficient in heavy-ion collisions 
 via kinetic theory\, K. Boguslavski\, A. Kurkela\, T. Lappi\, F. Lindenbau
 er\, J. Peuron\, arXiv:2303.12520 [hep-ph]\n[2] Jet momentum broadening du
 ring initial stages in heavy-ion collisions\, K. Boguslavski\, A. Kurkela\
 , T. Lappi\, F. Lindenbauer\, J. Peuron\, arXiv:2303.12595 [hep-ph]\n\nhtt
 ps://events.saifa.rs/event/554/contributions/373/
LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia
URL:https://events.saifa.rs/event/554/contributions/373/
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