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Phys. Rev. D 74, 113007 (2006) [6 pages]

Combined flavor symmetry violation and lepton number violation in neutrino physics

Micheal S. Berger and Samuel Santana
Physics Department, Indiana University, Bloomington, Indiana 47405, USA
Received 28 September 2006; published 18 December 2006

Heavy singlet neutrinos admit Majorana masses which are not possible for the Standard Model particles. This suggest new possibilities for generating the masses and mixing angles of light neutrinos. We present a model of neutrino physics which combines the source of lepton-number violation with the flavor symmetry responsible for the hierarchy in the charged lepton and quark sector. This is accomplished by giving the scalar field effecting the lepton-number violation a nonzero charge under the horizontal flavor symmetry. We find an economical model which is consistent with the measured values of the atmospheric and solar neutrino mass-squares and mixing angles.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.74.113007
DOI: 10.1103/PhysRevD.74.113007
PACS: 12.15.Ff; 11.30.Hv; 14.60.Pq
  • 12.15.Ff
    Quark and lepton masses and mixing in electroweak interactions
  • 11.30.Hv
    Flavor symmetries in particles and fields
  • 14.60.Pq
    Neutrino mass and mixing
  • YEAR: 2006
KEYWORDS: conservation laws, neutrino mass, neutrino oscillations, standard model, solar cosmic ray particles, cosmic ray neutrinos

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