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SUMMARY:Early universe phenomenology with an inflaton and primordial black
  holes
DTSTART:20260305T100000Z
DTEND:20260305T110000Z
DTSTAMP:20260419T020700Z
UID:indico-event-13447@indico.ijclab.in2p3.fr
DESCRIPTION:Speakers: Mathieu Gross (IJCLab)\n\nCosmological inflation is 
 nowadays well installed at the edge of the standard model cosmology as it 
 solves several shortcomings of the ΛCDM model. However\, this accelerated
  growth of the universe should crucially transition to radiation dominatio
 n for the late universe evolution to occur. This mandatory feature called 
 “reheating” can be achieved in different ways depending on the shape o
 f the inflationary potential and how the inflaton field couples to matter.
 \nIn this talk\, we will discuss how to go beyond the usual assumptions of
  instantaneous reheating in the context of single-field slow-roll inflatio
 n\, focusing more specifically on perturbative reheating and its impact on
  particle production\, such as relativistic dark matter. We will then brie
 fly discuss the high-frequency gravitational wave signals emerging from pa
 rticle reheating before presenting how primordial black holes could achiev
 e reheating and lead to a more reachable GW signal. We will finally discus
 s their local thermal effects on dark matter production.\n\nhttps://indico
 .ijclab.in2p3.fr/event/13447/
LOCATION:210/1-114 - Salle des Séminaires (IJCLab)
URL:https://indico.ijclab.in2p3.fr/event/13447/
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