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Competition between standard and exotic double beta decays

C. Barbero·F. Krmpotić·A. Mariano
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Abstract

We discuss the contributions of higher order terms in weak Hamiltonian to the standard two-neutrino double beta decay. The formalism for the unique first forbidden transitions has been developed, and it is shown that they can alter the two-electron energy spectrum. Yet, their effect is too small to screen the detection of exotic neutrinoless double beta decays, which are candidates for testing the physics beyond the standard model.

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C. Barbero, F. Krmpotić, A. Mariano. 1998-07-17. Competition between standard and exotic double beta decays. https://doi.org/10.1016/s0370-2693(98)00891-0

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