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SUMMARY:Boiling down Neutrinos: Cosmological First-Order Phase Transitions
  in Radiative Mass Models
DTSTART;VALUE=DATE-TIME:20260430T130000Z
DTEND;VALUE=DATE-TIME:20260430T150000Z
DTSTAMP;VALUE=DATE-TIME:20260429T004238Z
UID:indico-event-8589@indico.ific.uv.es
DESCRIPTION:Symmetries are the daily bread of modern particle physicists. 
 In a variety of scenarios their breaking is associated with the formation 
 and expansion of bubbles of true vacuum in what is called a first order p
 hase transition. In this context\, Electroweak Baryogenesis\, a mechanism 
 proposed over 40 years ago\, takes advantage of Electroweak symmetry break
 ing and offers a way to address the baryon asymmetry of the universe\, as
  all three Sakharov conditions can be realised on the walls of said bubbl
 es. Additionally\, the dynamics of bubble collisions could provide interes
 ting gravitational waves signals that could be detected in the years to co
 me. \n\nAlthough the Standard Model contains all required ingredients\, 
 it has long been established that the electroweak phase transition does no
 t proceed via nucleation of bubbles\, rather it is a smooth crossover. Add
 itionally\, the smallness of the CP violation in SM is insufficient to acc
 ount for the observed baryon asymmetry. \n\nExtending the SM scalar sect
 or can\, however\, drastically modify the dynamics of symmetry breaking 
 and provide a richer vacuum structure. In this talk\, I will analyse one
  such extension\, the Zee model\, first proposed to generating neutrino m
 asses at loop level via the introduction of additional scalar degrees of f
 reedom. We shall show how in this framework the electroweak phase transiti
 on actually proceeds via bubble nucleation\, and how it could be strong en
 ough to generate the observed baryon asymmetry of the universe. \n\nhttps
 ://indico.ific.uv.es/event/8589/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8589/
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