20–27 juil. 2011
Alpes Congrès - Alpexpo
Fuseau horaire Europe/Paris

Leptogenesis in neutrinophilic Higgs doublet models

22 juil. 2011, 16:50
15m
Berlioz (Alpes Congrès - Alpexpo)

Berlioz

Alpes Congrès - Alpexpo

Parallel session talk Cosmology and Gravity Cosmology and Gravity

Orateur

Dr Osamu Seto (Hokka-Gakuen University)

Description

We show that in a class of two Higgs doublet model, where one Higgs doublet generates masses of quarks and charged leptons whereas the other Higgs doublet with a tiny vacuum expectation value generates neutrino Dirac masses, large Yukawa couplings lead to a large enough CP asymmetry of the right-handed neutrino decay. Thermal leptogenesis suitably works at low energy scale as keeping no enhancement of lepton number violating wash out effects.

Auteur principal

Dr Osamu Seto (Hokka-Gakuen University)

Co-auteur

Prof. Naoyuki Haba (Osaka University)

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