Neutrino Mass Texture with Large Mixing

Details Neutrino Mass Texture with Large Mixing Neutrino Mass Texture with Large Mixing

1997-10-21

arxiv.org/abs/hep-ph/9710417v3

Phys.Rev.Lett. 80 (1998) 3004-3007

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, comments and references added

Scientific paper

10.1103/PhysRevLett.80.3004

We propose a simple texture for the right-handed Majorana mass matrix to give a large $\nu_\mu-\nu_\tau$ mixing angle and hierarchical left-handed neutrino mass pattern. Consistently with the Dirac mass texture of the quark sector realizing the CKM mixing, this naturally explains the recent experimental results on both the atmospheric neutrino anomaly observed by the Superkamiokande collaboration and the solar neutrino problem. In this texture the right-handed Majorana mass of the third generation is of the order of GUT scale, which is favorable for reproducing the observed bottom-tau mass ratio.

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