5 papers
Yukawa textures due to selection rules in magnetized orbifold models
Tatsuo Kobayashi, Tomoyasu Kori, Shuhei Miyamoto +2
We study systematically Yukawa textures, which can be derived from magnetized and orbifold models with various magnetic fluxes and Scherk-Schw…
Note on arithmetic structure of modulus vacua in flux compactifications
Yukiya Furuta, Tatsuo Kobayashi, Tomoyasu Kori +3
We study modulus stabilization by background fluxes. Within the truncated complex-structure sector, the F-term conditions of the complex structure moduli are described by a holomor…
More about modular symmetries and non-invertible properties in magnetized compactifications
Tatsuo Kobayashi, Shuhei Miyamoto, Riku Nakano +2
We study the modular symmetry in magnetized compactifications. The zero-modes with different Scherk-Schwarz phases transform each other. A generic model does not include modes with…
Residual group-like symmetries in selection rules without group actions
Jun Dong, Tatsuo Kobayashi, Shuhei Miyamoto +2
We analyze loop-induced group-like symmetries in theories where fields are labeled by basis elements of a fusion algebra constructed from the conjugacy classes of finite groups. Al…
Yukawa Textures with Enhanced Symmetries in Heterotic Calabi-Yau Compactifications
Jun Dong, Tatsuo Kobayashi, Shuhei Miyamoto +1
We clarify the structure of Yukawa couplings and mass matrices for matter fields in heterotic string theory on smooth Calabi-Yau threefolds with standard embedding. The topological…