0ν2βdecay and neutrino magnetic moment

Neutrinoless Double Beta Decay Mediated by the Neutrino Magnetic Moment

“…In the present paper we extend the idea discussed in Ref. [1], where a new channel of this decay has been proposed. In this scenario neutrinos not only oscillate inside the nucleus but also interact with an external non-uniform magnetic field.…”

“…It has been shown [12,13] that this mechanism has a resonant-like behaviour and its application to the solution of the solar neutrino puzzle has been discussed. In [1] the very same mechanism has been discussed in the context of the 0ν2β decay for a simplified two-neutrino case. This paper presents the realistic three-neutrino case together with a numerical analysis to show, that the new mechanism may, under proper conditions, significantly shorten the half-life of the decay in the resonance region.…”

“…In the two neutrinos case [12,13,1] the results can be presented in an concise analytical form and they exhibit all the key features of the realistic three-flavour case, which will be described in the next section. Choosing the basis (ν e , ν µ ,ν e ,ν µ ) T…”

“…Therefore regular matter distinguishes between electron and other neutrino flavours. (1) arXiv:1411.1877v2 [hep-ph] 10 May 2016…”

“…We assume that the field rotates about the direction of motion of the neutrino and show, that for a certain rotation speed the half-life of the 0ν2β decay can be significantly shortened. While the presentation in [1] was limited to a simplified two-neutrino case, in this work we investigate the realistic three-neutrino case and perform a detailed numerical study of this process.…”