Neutrino-less Double Beta Decay and Particle Physics

Abstract

We review the particle physics aspects of neutrino-less double beta decay. This process can be mediated by light massive Majorana neutrinos (standard interpretation) or by something else (non-standard interpretations). The physics potential of both interpretations is summarized and the consequences of future measurements or improved limits on the half-life of neutrino-less double beta decay are discussed. We try to cover all proposed alternative realizations of the decay, including light sterile neutrinos, supersymmetric or left-right symmetric theories, Majorons, and other exotic possibilities. Ways to distinguish the mechanisms from one another are discussed. Experimental and nuclear physics aspects are also briefly touched, alternative processes to double beta decay are discussed, and an extensive list of references is provided.

96 pages, 38 figures. Published version

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• Dirac-Majorana neutrinos distinction in four-body decays
• Effect of Spin-Dependent Short-Range Correlations on Nuclear Matrix Elements for Neutrinoless Double Beta Decay of ${}^{48}$Ca
• A split seesaw model with hidden neutrinoless double beta decay but successful leptogenesis
• New limit for the half-life of double beta decay of ${}^{94}$Zr to the first excited state of ${}^{94}$Mo
• Signatures of Supersymmetry in Neutrino Telescopes
• Active neutrino oscillations and double beta decay characteristics with sterile neutrinos contributions
• Study of neutrinoless double beta decay in the Standard Model extended with sterile neutrinos
• Octant of ${\theta }_{23}$, MH, $0\nu \beta \beta$ decay and vacuum alignment of $A_4$ flavour symmetry in an inverse seesaw model
• Renormalization group running triggered tri-resonant leptogenesis within neutrino flavor-symmetry models
• Status and Perspectives of Neutrino Physics
• QCD Running in Lepton Number Violating Meson and Tau Decays
• The Majorana Demonstrator Status and Preliminary Results
• Breaking of the tetra-maximal neutrino mixing pattern
• A lepton model with nearly Cobimaximal mixing
• Effects on sinθ_{12} from perturbation of the neutrino mixing matrix with the partially degenerated neutrino masses
• The Neutrinoless Double Beta Decay in the Colored Zee-Babu Model
• Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings
• The Dirac Majorana Confusion Theorem in the Presence of Flavor-Changing Neutral Currents: A CP-Filter Mechanism
• Statistical Issues on the Neutrino Mass Hierarchy with $\Delta {\chi }^2$
• Rejection of randomly coinciding 2ν2β events in ZnMoO4 scintillating bolometers
• Search for the lepton number violating process ${\Xi }^{-}\to {\Sigma }^{+}{e}^{-}{e}^{-}+c.c.$
• Majorana neutrino mass constraints in the landscape of nuclear matrix elements
• One-loop Renormalization of the Type-I Seesaw Model in the Modified Minimal-subtraction Scheme
• Explaining lepton-flavor non-universality and self-interacting dark matter with $L_{\mu }-L_{\tau }$
• $\rho$ exchange contribution to neutrinoless double beta decay