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Naturalness and lepton number/flavor violation in inverse seesaw models

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Title: Naturalness and lepton number/flavor violation in inverse seesaw models
Authors: Haba, Naoyuki Browse this author
Ishida, Hiroyuki Browse this author
Yamaguchi, Yuya Browse this author
Keywords: Neutrino Physics
Beyond Standard Model
Issue Date: 2-Nov-2016
Publisher: Springer
Journal Title: Journal of High Energy Physics
Volume: 2016
Issue: 11
Start Page: 3
Publisher DOI: 10.1007/JHEP11(2016)003
Abstract: We introduce three right-handed neutrinos and three sterile neutrinos, and consider an inverse seesaw mechanism for neutrino mass generation. From naturalness point of view, their Majorana masses should be small, while it induces a large neutrino Yukawa coupling. Then, a neutrinoless double beta decay rate can be enhanced, and a sizable Higgs mass correction is inevitable. We find that the enhancement rate can be more than ten times compared with a standard prediction from light neutrino contribution alone, and an analytic form of heavy neutrino contributions to the Higgs mass correction. In addition, we numerically analyze the model, and find almost all parameter space of the model can be complementarily searched by future experiments of neutrinoless double beta decay and mu -> e conversion.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山口 雄也

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