The origin of pulsar kicks is reviewed in the framework of the spin-flip conversion of neutrinos propagating in the gravitational field of a magnetized protoneutron star. We find that for a mass in rotation with angular velocity omega, the spin connections entering in the Dirac equation give rise to the coupling term omega (.) p, where p is the neutrino momentum. Such a coupling can be responsible for pulsar kicks owing to the neutrino emission asymmetry generated by the relative orientation of p with respect to omega. For our estimations, the large non-standard neutrino magnetic momentum, mu(v) less than or similar to 10(-11) mu(B), is considered.

Pulsar Kicks Induced by Spin Flavor Oscillations of Neutrinos in Gravitational Fields

LAMBIASE, Gaetano
2005

Abstract

The origin of pulsar kicks is reviewed in the framework of the spin-flip conversion of neutrinos propagating in the gravitational field of a magnetized protoneutron star. We find that for a mass in rotation with angular velocity omega, the spin connections entering in the Dirac equation give rise to the coupling term omega (.) p, where p is the neutrino momentum. Such a coupling can be responsible for pulsar kicks owing to the neutrino emission asymmetry generated by the relative orientation of p with respect to omega. For our estimations, the large non-standard neutrino magnetic momentum, mu(v) less than or similar to 10(-11) mu(B), is considered.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/1066750
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