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SUMMARY:Baryogenesis via Neutrino Oscillations
DTSTART;VALUE=DATE-TIME:19980423T133000Z
DTEND;VALUE=DATE-TIME:19980423T143000Z
DTSTAMP;VALUE=DATE-TIME:20260616T172232Z
UID:indico-event-1071@indico.ific.uv.es
DESCRIPTION:We propose a new mechanism of leptogenesis in which the asymme
 tries in lepton numbers are produced through the CP-violating oscillations
  of ``sterile'' (electroweak singlet) neutrinos. The asymmetry is communic
 ated from singlet neutrinos to ordinary leptons through their Yukawa coupl
 ings. The lepton asymmetry is then reprocessed into baryon asymmetry by el
 ectroweak sphalerons. We show that the observed value of baryon asymmetry 
 can be generated in this way\, and the masses of ordinary neutrinos induce
 d by the seesaw mechanism are in the astrophysically and cosmologically in
 teresting range. Except for singlet neutrinos\, no physics beyond the Stan
 dard Model is required.\n\nhttps://indico.ific.uv.es/event/1071/
LOCATION:Dpto. de Fisica Teorica (UVEG) Sala Seminarios
URL:https://indico.ific.uv.es/event/1071/
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