Particle-Antiparticle Metamorphosis of Massive Majorana Neutrinos and Gauginos

TL;DR

This paper explores the complex spacetime structure of Majorana neutrinos and gauginos, providing a formalism for understanding their metamorphosis, especially in the context of neutrinoless double beta decay.

Contribution

It develops a detailed formalism to describe the non-trivial spacetime structure underlying Majorana neutrinos and gauginos, addressing gaps in previous treatments.

Findings

Formalism for Majorana spacetime structure

Description of nu-nubar metamorphosis

Implications for neutrinoless double beta decay

Abstract

Recent results on neutrinoless double beta decay, as reported by Klapdor-Kleingrothaus et al., take us for the first time into the realm of Majorana spacetime structure. However, this structure has either been treated as an afterthought to the Dirac construct; or, when it has been attended to in its own right, its physical and mathematical content was never fully unearthed. In this Letter,we undertake to remedy the existing situation. We present a detailed formalism required for the description of the non-trivial spacetime structure underlying the "nu-nubar" metamorphosis - where "nu" generically represents a massive Majorana neutrino, or a massive gaugino.