High energy neutrino absorption by W production in a strong magnetic field
A.V. Kuznetsov, N.V. Mikheev, A. V. Serghienko (Yaroslavl State, (P.G. Demidov) University, Russia)
TL;DR
This paper investigates how strong magnetic fields affect high-energy neutrinos, focusing on their decay processes and mean free paths, and defines an energy cutoff relevant for astrophysical environments.
Contribution
It provides the first detailed calculation of neutrino decay widths and mean free paths in strong magnetic fields, revealing an energy cutoff for neutrino propagation.
Findings
Neutrino decay width into electron and W boson increases in strong magnetic fields.
Mean free path of ultra-high energy neutrinos is significantly affected by magnetic field strength.
An energy cutoff for neutrinos in strong magnetic fields is established.
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.
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