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SUMMARY:IFIC Seminar: Supernovae as probes of soft lepton number violation
DTSTART;VALUE=DATE-TIME:20220329T100000Z
DTEND;VALUE=DATE-TIME:20220329T110000Z
DTSTAMP;VALUE=DATE-TIME:20260429T140526Z
UID:indico-event-6552@indico.ific.uv.es
DESCRIPTION:Ever since the discovery of neutrinos\, we have wondered if ne
 utrinos are their own antiparticles\, and whether lepton number is violate
 d or not. One remarkable possibility is that lepton-number violation in th
 e Standard Model is soft. In such scenarios\, neutrinos have a pseudo-Dira
 c nature\, with a tiny mass difference between active and sterile states\,
  having oscillations driven by this tiny mass difference. Such oscillation
 s can only be visible over very long distances. In this talk\, I will disc
 uss how analyzing the neutrino data from SN1987A in the light of active-st
 erile oscillations can present a mild preference for such oscillations. No
 tably\, the same data is able to exclude some of the tiniest mass differen
 ces for neutrinos constrained so far. I will further discuss the prospects
  of using the ever-present diffuse supernova neutrino background as a labo
 ratory to test the possible\, albeit tiny\, violation of lepton number.\n\
 nhttps://indico.ific.uv.es/event/6552/
LOCATION:IFIC Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/6552/
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