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

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 $\mathcal{O}(1)$.

4 pages

References in corpus (7)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• Neutrinoless double beta decay from a modern perspective
• Neutrino masses and the number of neutrino species from WMAP and 2dFGRS
• Neutrinoless double-beta decay and effective field theory
• Cosmological mass limits on neutrinos, axions, and other light particles
• Can cosmology detect hierarchical neutrino masses?

Cited by in corpus (5)

• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• Status and Future of Nuclear Matrix Elements for Neutrinoless Double-Beta Decay: A Review
• Multiple-Isotope Comparison for Determining Neutrinoless Double-Beta Decay Mechanisms
• Left-right symmetry and leading contributions to neutrinoless double beta decay
• $\rho$ exchange contribution to neutrinoless double beta decay