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SUMMARY:Webinar: Self-induced flavor conversion of supernova neutrinos
DTSTART;VALUE=DATE-TIME:20160315T140000Z
DTEND;VALUE=DATE-TIME:20160315T150000Z
DTSTAMP;VALUE=DATE-TIME:20260627T125236Z
UID:indico-event-2719@indico.ific.uv.es
DESCRIPTION:\n    Neutrino flavor evolution in dense media such as core-co
 llapse supernovae is dominated by neutrino–neutrino refraction\, produc
 ing ``self-induced flavor conversion\,” i.e.\, shuffling of flavor amon
 g momentum modes. This effect is driven by collective run-away modes of t
 he coupled ``flavor oscillators” and can spontaneously break the initia
 l symmetries (such as axial symmetry\, homogeneity\, isotropy\, and even 
 stationarity) of the neutrino flux and in particular can produce small-sc
 ale features. Another interesting feature of these unstable modes are tha
 t the growth rates can be of the order of the neutrino–neutrino interac
 tion energy instead of the much smaller vacuum oscillation frequency: imp
 lying that the self-induced flavor conversion does not always require neu
 trino masses. However\, the unavoidable ``multi-angle matter effect'' may
  shift these small-scale instabilities into regions of matter and neutrin
 o density which are not encountered on the way out from a SN. We illustra
 te these newly found phenomena in terms of simple toy models\, what happe
 ns in realistic astrophysical scenarios is remains to be understood.\n\nh
 ttps://indico.ific.uv.es/event/2719/
LOCATION:IFIC retransmitted from Seminar Room\, 1.1.1
URL:https://indico.ific.uv.es/event/2719/
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