Baryon Triality and Neutrino Masses from an Anomalous Flavor U(1)

Details Baryon Triality and Neutrino Masses from an Anomalous Flavor U(1) Baryon Triality and Neutrino Masses from an Anomalous Flavor U(1)

2006-10-02

arxiv.org/abs/hep-ph/0610026v2

Nucl.Phys.B774:127-167,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

matches published version, typos corrected, references added, 54 pages, 3 figures, 5 tables

Scientific paper

10.1016/j.nuclphysb.2007.03.028

We construct a concise U(1)_X Froggatt-Nielsen model in which baryon triality, a discrete gauge Z_3 symmetry, arises from U(1)_X breaking. The proton is thus stable, however, R-parity is violated. With the proper choice of U(1)_X charges we can obtain neutrino masses and mixings consistent with an explanation of the atmospheric and solar neutrino anomalies in terms of neutrino oscillations, with no right-handed neutrinos required. The only mass scale apart from M_grav is m_3/2 ~ m_soft.

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