An updated numerical analysis of eV seesaw with four generations
Journal
International Journal of Modern Physics A
Journal Volume
25
Journal Issue
32
Pages
5913-5922
Date Issued
2010
Author(s)
Lee, F.-F.
Abstract
We consider the so-called "eV seesaw" scenario, with right-handed Majorana mass MR at eV order, extended to four lepton generations. The fourth generation gives a heavy pseudo-Dirac neutral lepton, which largely decouples from other generations and is relatively stable. The framework naturally gives three active and three sterile neutrinos. We update a previous numerical analysis of a 3+3 study of the LSND anomaly, taking into account the more recent results from the MiniBooNE experiment. In particular, we study the implications for the third mixing angle sin2 θ13, as well as CP violation. We find that current data do not seriously constrain more than one sterile neutrinos. © 2010 World Scientific Publishing Company.
Subjects
Fourth generation; neutrino mixing; neutrino physics
SDGs
Type
journal article