Neutrino oscillations in strong magnetic fields

Details Neutrino oscillations in strong magnetic fields Neutrino oscillations in strong magnetic fields

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994nosm.book.....l&link_type=abstract

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Astronomy and Astrophysics

Astrophysics

Astrophysics, Magnetic Fields, Neutrinos, Neutron Stars, Oscillations, Density (Number/Volume), Hamiltonian Functions, Magnetic Moments, Supernovae

Scientific paper

Neutrino conversion processes between two neutrino species and the corresponding oscillations induced by strong magnetic fields are considered. The value of the critical strength of magnetic field B(sub cr) as a function of characteristics of neutrinos in vacuum (Delta m(sup 2)(sub nu), mixing angle theta), effective particle density of matter n(sub eff), neutrino (transition) magnetic moment mu-tilde and energy E is introduced. It is shown that the neutrino conversion and oscillations effects induced by magnetic fields B greater or equal than B(sub cr) are important and may result in the depletion of the initial type of nu's in the bunch. A possible increase of these effects in the case when neutrinos pass through a sudden decrease of density of matter ('cross-boundary effect') and applications to neutrinos from neutron stars and supernova are discussed.

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