arXiv:1910.02961·v1·High Energy Physics — Phenomenology
Dirac neutrinos from Peccei-Quinn symmetry: a fresh look at the axion
Eduardo Peinado🇲🇽 · Mario Reig🇨🇦 · Rahul Srivastava🇪🇸 · Jose W. F. Valle🇪🇸
Abstract
We show that a very simple solution to the strong CP problem naturally leads to Dirac neutrinos. Small effective neutrino masses emerge from a type I Dirac seesaw mechanism. Neutrino mass limits probe the axion parameters in regions currently inaccessible to conventional searches.
Comments: 6 pages, 3 figures, 2 tables