The neutrino oscillations in the external electromagnetic field: prospects of practical application in astronomy
Andrey D. Yankevich1, Alla B. Bucharskaya, 2,3; 1Moscow State University, 2Saratov State University,3 Saratov State Medical University
Abstract
The Standard Model, the modern theory of the structure and interactions of elementary particles, is generally recognized; however, neutrino oscillations in vacuum are not described by the Standard Model because they assume the possibility of transformation of different types of neutrinos into each other.
The aim of the study is to review the current research on neutrino oscillations in the external electromagnetic field.
The interaction of neutrinos with the electromagnetic field is mainly due to anomalous magnetic moments. At non-zero mixing there can be both diagonal and transient magnetic moments. In the presence of an external electromagnetic field, diagonal moments lead to a change in helicity within a single neutrino generation, whereas transient moments additionally cause a change in the neutrino flavor, the so-called spin-flavor oscillations. Neutrino oscillations can serve as a key both to the study of astrophysical objects and to the discovery of new elementary particles, and can also help in explaining baryon asymmetry and in the construction of the Grand Unification Theory. The practical significance of research in the field of neutrino oscillations is conditioned by the construction of new neutrino telescopes of the "megascience" class JUNO, Hyper-Kamiokande, Baikal Neutrino Telescope, and Baikal Neutrino Telescope.
Speaker
Andrey Yankevich
Moscow State University
Russia
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