BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Giacomo Ferrante: "No room for monopole dark matter"
DTSTART:20260402T113000Z
DTEND:20260402T130000Z
DTSTAMP:20260429T204300Z
UID:indico-event-51641@agenda.infn.it
DESCRIPTION:The magnetic monopole of a dark sector represents a compelling
  dark matter candidate\, as its stability naturally follows from the non-t
 rivial topology of vacuum. I will revisit the computation of the monopole 
 abundance generated by a thermal phase transition\, in the simplest model 
 admitting monopole solutions. I will explore the three regimes where the p
 hase transition is second order\, weakly first order\, or supercooled\, id
 entifying the regions of parameter space where the monopole relic density 
 matches that of dark matter. However\, a dark sector featuring monopoles n
 ecessarily contains stable electrically-charged particles\, namely massive
  vector bosons. I will show that the abundance of gauge bosons always grea
 tly exceeds the monopole one. This result leads to the conclusion that dar
 k monopoles cannot constitute a sizeable fraction of dark matter in the mi
 nimal model\, contrarily to what has been claimed in the literature.\n\nht
 tps://agenda.infn.it/event/51641/
LOCATION:Sala Direzione INFN
URL:https://agenda.infn.it/event/51641/
END:VEVENT
END:VCALENDAR