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A reduction in the UHE neutrino flux due to neutrino spin precession

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arxiv 1205.4285 v2 pith:TDIX5IBB submitted 2012-05-19 astro-ph.HE hep-ph

A reduction in the UHE neutrino flux due to neutrino spin precession

J. Barranco , O. G. Miranda , C. A. Moura , A. Parada This is my paper
classification astro-ph.HE hep-ph
keywords neutrinoactivefluxmagneticneutrinosobjectsastrophysicalburst
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Motivated by the stringent flux limits for UHE neutrinos coming from gamma ray burst or active galactic nuclei, we explore the possibility that the active neutrinos generated in such astrophysical objects could oscillate to sterile right handed states due to a neutrino magnetic moment mu_nu. We find that a value as small as mu_nu ~1E-15 mu_B could produce such a transition thanks to the intense magnetic fields that are expected in these objects.

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