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arXiv · 1004.2359

An Updated Numerical Analysis of eV Seesaw with Four Generations

Wei-Shu Hou·Fei-Fan Lee
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Abstract

We consider the so-called "eV seesaw" scenario, with right-handed Majorana mass $M_R$ 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 3 active and 3 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 $\mathrm{sin}^2\theta_{13}$, as well as CP violation. We find that current data do not seriously constrain more than one sterile neutrinos.

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Wei-Shu Hou, Fei-Fan Lee. 2010-04-14. An Updated Numerical Analysis of eV Seesaw with Four Generations. https://doi.org/10.1142/s0217751x10051207

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