Effects of Spin-Flavor Conversion in Supernova Neutrino Signal

Details Effects of Spin-Flavor Conversion in Supernova Neutrino Signal Effects of Spin-Flavor Conversion in Supernova Neutrino Signal

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1120..298y&link_type=abstract

PERSPECTIVE IN NUCLEAR PHYSICS: Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics. AIP Conference Proceedings,

Physics

Nuclear Physics

Spin, Parity, And Isobaric Spin, Radiation Detectors, Neutrino Mass And Mixing, Normal Galaxies, Extragalactic Objects And Systems

Scientific paper

Majorana neutrinos with a finite transition magnetic moment are expected to convert their flavors by spin precession in a strong magnetic field of a supernova. We investigate detailed dependence of the resonant spin-flavor conversions on electron fraction Ye in the innermost region of the supernova assuming the inverted mass hierarchy. The observed supernova ve spectrum is expected to be larger in Ye>0.5 than that in Ye<0.5. Therefore, the time variation of supernova ve signal would indicate Majorana neutrinos with a finite transition magnetic moment.

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