2021年
02/16
開催
開催日時
2021/02/16（火）11:00〜12:00
開催場所
zoom
講演者
Mr. Shih-Yen Tseng ( 東京大学 )
言語
English
詳細ページ
お問い合わせ
松戸 竜太郎 / matsudo-AT-post.kek.jp
概要
We propose a minimal alternative gauged U(1)B−LB−L model in which three right-handed neutrinos with charges of (5,-4,-4) and only one B-L Higgs field with charge 1 are introduced. Consistent active neutrino masses and mixings can be obtained if a Z2Z2 symmetry on two of the right-handed neutrinos is introduced. It predicts two heavy degenerate right-handed neutrinos, which may realize the resonant leptogenesis scenario, and one relatively light sterile neutrino, which is a good dark matter candidate.