eV Seesaw with Four Generations

Preprint

9 May 2006

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0512278

Abstract

We extend the eV seesaw scenario to four lepton generations. The LSND anomaly is taken as the right-handed seesaw scale, i.e. m_R ~ eV. The fourth generation then gives a heavy pseudo-Dirac neutrino which largely decouples from other generations, and is relatively stable. One effectively has a 3+3 solution to the LSND anomaly, where we illustrate with numerical solutions. Our study indicates that the third mixing angle sin^2(theta13) is likely less than 0.01.

Keywords

NUMERICAL SOLUTIONS
LEPTON GENERATIONS
FOUR GENERATIONS
LSND ANOMALY
FOUR LEPTON
EV SEESAW
SEESAW
HANDED

All Related Versions

Version 1, 2005-12-21, ArXiv
Version 2, 2006-05-09, ArXiv
Published version: Physics Letters B, 638 (2-3), 229.

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