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arXiv · hep-ph/0409235

Light neutrino and heavy particle exchange in $\nbb$-decay

Gary Prézeau
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Abstract

A simple and precise method is presented to compare contributions to neutrinoless double-beta decay ($\nbb$-decay) from heavy particle exchange and light Majorana neutrino exchange. This procedure makes no assumptions about the momentum transfer between the two nucleons involved in the $\nbb$-decay process. It is shown that for a general particle physics model, the characteristic $\nbb$-decay scale $> 4.4$ TeV when all the coupling constants are assumed to be natural and of ${\cal{O}}(1)$.

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Gary Prézeau. 2004-09-20. Light neutrino and heavy particle exchange in $\nbb$-decay. https://doi.org/10.1016/j.physletb.2005.11.048

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