Significant neutrinoless double beta decay with quasi-Dirac neutrinos

Abstract

A significant signal of neutrinoless double beta decay can be consistent with the existence of light quasi-Dirac neutrinos. To demonstrate this possibility, we consider a realistic model where the neutrino masses and the neutrinoless double beta decay can be simultaneously generated after a Peccei-Quinn symmetry breaking.

Comments: 5 pages, 3 figures, 1 table. Journal version