Light neutrino and heavy particle exchange in 0νββ-decay

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A simple and precise method is presented to compare contributions to neutrinoless double-beta decay (0νββ-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 0νββ-decay process. It is shown that for a general particle physics model, the characteristic 0νββ-decay scale > 4.4 TeV when all the coupling constants are assumed to be natural and of O(1). © 2005 Elsevier B.V. All rights reserved.




Prézeau, G. (2006). Light neutrino and heavy particle exchange in 0νββ-decay. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 633(1), 93–97.

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