High energy neutrino absorption by W production in a strong magnetic field
arXiv:1002.3804 · doi:10.1016/j.physletb.2010.05.059
Abstract
An influence of a strong external magnetic field on the neutrino self-energy operator is investigated. The width of the neutrino decay into the electron and W boson, and the mean free path of an ultra-high energy neutrino in a strong magnetic field are calculated. A kind of energy cutoff for neutrinos propagating in a strong field is defined.
arXiv comment13 pages, LaTeX, 1 EPS figure, submitted to Physics Letters B
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- A study of neutral particle decay in magnetic field with the "Worldline Instanton" approach
- Position-space representation of charged particles' propagators in a constant magnetic field as an expansion over Landau levels