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SUMMARY:CANCELLED - IFIC Seminar: Stellar cooling limits on new scalars an
 d extra dimensions
DTSTART;VALUE=DATE-TIME:20251216T110000Z
DTEND;VALUE=DATE-TIME:20251216T123000Z
DTSTAMP;VALUE=DATE-TIME:20260520T103429Z
UID:indico-event-8349@indico.ific.uv.es
DESCRIPTION:Stellar evolution is known to serve as a sensitive probe of ph
 ysics beyond the Standard model (BSM). Using a bottom-up effective field t
 heory perspective\, I will discuss the stellar cooling effects associated 
 to Higgs-portal scalars and large extra dimensions\, both of which arise n
 aturally in the context of many BSM scenarios. Employing the formalism of 
 thermal field theory to compute in-medium self-energies and mixing rates\,
  we will see that scalars and KK gravitons with masses smaller than the pl
 asma frequency in the stellar core can be efficiently produced by resonant
  mixing with in-medium electromagnetic excitations\, and that this previou
 sly neglected effect gives the dominant robust contribution to supernova a
 nd/or red giant cooling. I will discuss the resulting constraints on new s
 calars and extra dimensions\, together with the implications for future ex
 periments and observations.\n\nhttps://indico.ific.uv.es/event/8349/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8349/
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