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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1089
DTSTART:20080410T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260423T041044Z
LAST-MODIFIED:20080403T140826Z
LOCATION:4274 Chamberlin Hall
SUMMARY:The role of SUSY flat directions in reheating\, NPAC (Nuclear/
 Particle/Astro/Cosmo) Forum\, Marco Peloso\, University of Minnesota
DESCRIPTION:Reheating after inflation describes all the particle physi
 cs processes occurring from the decay of the inflaton up to the establ
 ishment of thermal equilibrium. Due to the strong model dependence\, i
 t is one of the most unknown stages in the history of the universe. It
  has been argued that SUSY flat directions are naturally excited durin
 g inflation\, and that they slow down the thermalization of the inflat
 on decay products by providing a large effective mass to the fields th
 ey are coupled to. We discuss a nonperturbative decay channel for the 
 flat directions which has been generally overlooked in the literature.
  It typically leads to a quick decay of the flat directions\, and\, co
 nsequently\, to a suppression of their delaying effect for thermalizat
 ion.
URL:https://www.physics.wisc.edu/events/?id=1089
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