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arXiv · 1604.01388

Lepton Number Violation and `Diracness' of massive neutrinos composed of Majorana states

Janusz Gluza·Tomasz Jelinski·Robert Szafron
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Abstract

Majorana neutrinos naturally lead to a Lepton Number Violation (LNV). A superposition of Majorana states can mimic Dirac-type neutrinos, leading to its conservation (LNC). We demonstrate on the example of specific observables related to high and low energy processes how a strength of LNV correlates with neutrino parameters such as CP-phases, flavor mixings, mass ratios. We stress the coaction between low and high energy studies for putting phenomenological models to a quantitative test. Secondly, we conclude that in order to fully study the role of heavy neutrinos in search for New Physics (NP) signals, a departure from trivial scenarios assuming degeneracy in mass and no flavor mixing or CP-phases becomes necessary for a proper physical analysis.

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Janusz Gluza, Tomasz Jelinski, Robert Szafron. 2016-04-05. Lepton Number Violation and `Diracness' of massive neutrinos composed of Majorana states. https://doi.org/10.1103/physrevd.93.113017

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