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arXiv · 1010.0582

A decay of the ultra-high-energy neutrino $\nu_e \to e^- W^+$ in a magnetic field and its influence on the shape of the neutrino spectrum

A. V. Kuznetsov·N. V. Mikheev·A. V. Serghienko
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Abstract

The width of the neutrino decay into the electron and $W$ boson in a strong external magnetic field is obtained from the imaginary part of the neutrino self-energy. This result corrects the formulae existing in the literature. The mean free path of an ultra-high energy neutrino in a strong magnetic field is calculated. An energy cutoff for neutrinos propagating in a strong field is defined.

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A. V. Kuznetsov, N. V. Mikheev, A. V. Serghienko. 2010-10-04. A decay of the ultra-high-energy neutrino $\nu_e \to e^- W^+$ in a magnetic field and its influence on the shape of the neutrino spectrum. https://arxiv.org/abs/1010.0582

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