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Using the exact solutions for the Dirac neutrino wave function in presence of matter we study the spin light mode in the process of neutrino transition from initial heavier to final lighter state. The spin light is emitted due to the…

High Energy Physics - Phenomenology · Physics 2010-01-05 Alexander Grigoriev , Alexey Lokhov , Alexander Studenikin

The Spin Light of neutrino, the process that becomes possible in matter for a neutrino with nontrivial electromagnetic properties, is considered for the case of nonequal neutrino masses in the initial and final states.

High Energy Physics - Phenomenology · Physics 2010-12-15 A. Grigoriev , A. Lokhov , A. Studenikin , A. Ternov

A new type of electromagnetic radiation by a neutrino with non-zero magnetic (and/or electric) moment moving in background matter and electromagnetic field is considered. This radiation originates from the quantum spin flip transitions and…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. Lobanov , A. Studenikin

We propose a modified Dirac equation for a massive neutrino moving in the presence of the background matter. The effects of the charged and neutral-current interactions with the matter as well as the matter motion and polarization are…

High Energy Physics - Phenomenology · Physics 2021-01-19 Alexander Studenikin , Alexei Ternov

We consider the matter effects on neutrinos moving in background on the basis of the corresponding quantum wave equations. Both Dirac and Majorana neutrino cases are discussed. The effects for Dirac neutrino reflection and trapping as well…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alexander Grigoriev , Alexander Studenikin , Alexei Ternov

The Spin Light of neutrino ($SL\nu$) is an electromagnetic radiation of the neutrino magnetic moment emitted when neutrino moves in external conditions (fields or matter). The effect can be of significance in the extremely dense matter of…

High Energy Physics - Phenomenology · Physics 2026-02-09 Alexander Grigoriev , Alexei Ternov

The $ spin $ $ light$ $ of $ $neutrino $ ($SL\nu$) is a phenomenon of electromagnetic radiation by a massive neutrino moving in external media that is originated owing to neutrino magnetic moment. In this short paper we note on the…

High Energy Physics - Phenomenology · Physics 2018-01-29 Alexander Grigoriev , Alexey Lokhov , Alexander Studenikin , Alexei Ternov

We further generalize the powerful method, which we have recently developed for description of the background matter influence on neutrinos, for the case of an electron moving in matter. On the basis of the modified Dirac equation for the…

High Energy Physics - Phenomenology · Physics 2016-12-07 Alexander Grigoriev , Sergey Shinkevich , Alexander Studenikin , Alexei Ternov , Ilya Trofimov

The ${\it {spin \ \ light \ \ of \ \ neutrino}}$ ($SL\nu$) is a new possible mechanism of electromagnetic radiation by a massive neutrino (with a nonzero magnetic moment) moving in media. Since the prediction of this mechanism, the question…

High Energy Physics - Phenomenology · Physics 2017-11-29 Alexander Grigoriev , Alexey Lokhov , Alexander Studenikin , Alexei Ternov

Motivated by the need of elaboration of the quantum theory of the spin light of neutrino in matter ($SL\nu$), we have studied in more detail the exact solutions of the Dirac equation for neutrinos moving in the background matter. These…

High Energy Physics - Phenomenology · Physics 2009-11-11 Alexander Studenikin

We derive the modified Dirac equation for an electron undergos an influence of the standard model interaction with the nuclear matter. The exact solutions for this equation and the electron energy spectrum in matter are obtained. This…

High Energy Physics - Phenomenology · Physics 2009-11-11 Alexander Grigoriev , Sergey Shinkevich , Alexander Studenikin , Alexei Ternov , Ilya Trofimov

On the basis of the exact solutions of the modified Dirac equation for a massive neutrino moving in matter we develop the quantum theory of the spin light of neutrino ($SL\nu$). The expression for the emitted photon energy is derived as a…

High Energy Physics - Phenomenology · Physics 2009-11-10 Alexander Studenikin , Alexei Ternov

We discuss recent developments in neutrino physics and focus, in particular, on neutrino oscillations and matter effects of three light active neutrinos. Moreover, we discuss the difference between Dirac and Majorana neutrinos, neutrinoless…

High Energy Physics - Phenomenology · Physics 2017-08-23 W. Grimus

We consider propagation of a massive neutrino in matter within the quantum approach based on the two equations for the neutrino field: the first one is the Dirac-Pauli equation for a massive neutrino in an external magnetic field…

High Energy Physics - Phenomenology · Physics 2017-08-23 Alexander Grigoriev , Alexander Studenikin , Alexei Ternov

The quantum theory of the spin light of neutrino ($SL\nu$) exactly accounting for the effect of the background matter is developed. The $SL\nu$ rate and power, and also the emitted photon's energy are obtained for the different values of…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Grigoriev , A. Studenikin , A. Ternov

The quantum theory of spin light (electromagnetic radiation emitted by a Dirac massive neutrino propagating in dense matter due to the weak interaction of a neutrino with background fermions) is developed. In contrast to the Cherenkov…

High Energy Physics - Phenomenology · Physics 2009-11-11 A. E. Lobanov

The neutrino spin flip radiative conversion processes nu_L -> nu_R + gamma^* and nu_L + gamma^* -> nu_R in medium are considered. It is shown in part that an analysis of the so-called spin light of neutrino without a complete taking account…

High Energy Physics - Phenomenology · Physics 2007-12-11 A. V. Kuznetsov , N. V. Mikheev

Recent discussion on the possibility to obtain more stringent bounds on neutrino magnetic moment has stimulated new interest to possible effects induced by neutrino magnetic moment. In particular, in this note after a short review on…

High Energy Physics - Phenomenology · Physics 2022-03-02 A. V. Grigoriev , A. V. Lokhov , A. I. Studenikin , A. I. Ternov

The quasi-classical theory of the spin light of neutrino ($SL\nu$) in background matter, accounting for the neutrino polarization, is developed. The neutrino transitions $\nu_{L}\to \nu_{R}$ and $\nu_{R}\to \nu_{L}$ rates in matter are…

Astrophysics · Physics 2009-11-10 Andrey Lobanov , Alexander Studenikin

We present a rather powerful method in investigations of different phenomena that can appear when neutrinos and electrons are moving in the background matter. This method is based on the use of the modified Dirac equations for the particles…

High Energy Physics - Phenomenology · Physics 2014-11-27 Alexander Studenikin
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