Neutrino flavor oscillations and spin rotation in matter and electromagnetic fieldстатья
Статья опубликована в высокорейтинговом журнале
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 февраля 2020 г.
Аннотация:We obtain a relativistically covariant wave equation for neutrinos in dense matter and electromagneticfield, which describes both flavor oscillations and neutrino spin rotation. Using this equation we construct aquasiclassical theory of these phenomena. We obtain the probabilities of arbitrary spin-flavor transitionsassuming the external conditions to be constant. We demonstrate that the resonance behavior of thetransition probabilities is possible only when the neutrino flavor states cannot be described as superpositionsof the mass eigenstates. We discover that a resonance, which is similar to the Mikheev–Smirnov–Wolfenstein resonance, takes place for neutrinos in magnetic field due to the transition magnetic moments.This resonance gives an opportunity to determine, whether neutrinos are Dirac or Majorana particles.