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arXiv · 1511.09256

Majorana neutrino mass structure induced by rigid instatons on toroidal orbifold

Tatsuo Kobayashi·Yoshiyuki Tatsuta·Shohei Uemura
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Abstract

We study effects of D-brane instantons wrapping rigid cycles on Z2*Z2' toroidal orbifold. We compute Majorana masses induced by rigid D-brane instantons and realize bimaximal mixing matrices in certain models. We can also derive more generic mass matrices in other models. The bimaximal mixing Majorana mass matrix has a possibility to explain observed mixing angles. We also compute the mu-term matrix among more than one pairs of Higgs fields induced by rigid D-brane instantons.

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Tatsuo Kobayashi, Yoshiyuki Tatsuta, Shohei Uemura. 2015-11-30. Majorana neutrino mass structure induced by rigid instatons on toroidal orbifold. https://doi.org/10.1103/physrevd.93.065029

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