Earth Effects and Mass Hierarchy with Supernova Neutrinos

Details Earth Effects and Mass Hierarchy with Supernova Neutrinos Earth Effects and Mass Hierarchy with Supernova Neutrinos

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009nuphs.188..118d&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 188, p. 118-120.

Physics

Nuclear Physics

Scientific paper

Collective neutrino flavor transformations take place deep inside a supernova if the neutrino mass hierarchy is inverted, even for extremely small values of θ. We show that the presence (or absence) of Earth matter effects in antineutrino signal is directly related to the absence (or presence) of these collective effects, when the mixing angle θ is small. Thus a neutrino signal from a galactic supernova may enable us to distinguish between the hierarchies even for small values of θ.

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