BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Reheating after Axion Inflation
DTSTART:20260707T120000Z
DTEND:20260707T130000Z
DTSTAMP:20260906T232600Z
UID:indico-event-110@indico.zdv.uni-mainz.de
DESCRIPTION:Speakers: Tenta Tsuji (KEK and Sokendai\, Tsukuba)\n\nIn moder
 n cosmology\, it is generally assumed that after inflation\, the energy st
 ored in the inflaton field is transferred to radiation through a process k
 nown as reheating. Axion-like particles have attracted  attention as infl
 aton candidates\, since their shift symmetry can naturally protect the fla
 tness of the inflaton potential. In this talk\, I will discuss the reheati
 ng process in a model where an axion-like inflaton is coupled to non-Abeli
 an gauge fields through a Chern-Simons coupling. In this scenario\, the in
 flaton energy can be transferred efficiently through resonant gauge-field 
 production\, as is familiar from preheating analyses\, and through thermal
  dissipation. One might therefore expect reheating to complete efficiently
 . However\, an important question remains. Even a small remnant of the inf
 laton  can eventually dominate the energy density of the Universe again. 
 I will explain how reheating is completed in this context\, and discuss th
 e conditions under which the Universe successfully becomes radiation domin
 ated. This talk is based on arXiv:2503.01228\, JCAP 07 (2025)\, 002.\n\nht
 tps://indico.zdv.uni-mainz.de/event/110/
LOCATION:R. 05-127 (Lorentz-Room)
URL:https://indico.zdv.uni-mainz.de/event/110/
END:VEVENT
END:VCALENDAR