88 citations · 166 across the 11 of their papers we have counts for
22 papers
Zero-mode wave functions by localized gauge fluxes
Tatsuo Kobayashi, Hajime Otsuka, Makoto Sakamoto +3
We study chiral zero-mode wave functions on blow-up manifolds of orbifolds with both bulk and localized magnetic flux backgrounds. We introduce a singular gauge transform…
Modular symmetry of soft supersymmetry breaking terms
Shota Kikuchi, Tatsuo Kobayashi, Kaito Nasu +3
We study the modular symmetry of soft supersymmetry breaking terms. Soft scalar masses and -term coefficients are invariant under the modular symmetry when we regard -term as…
Radiative neutrino masses from modular symmetry and supersymmetry breaking
Hajime Otsuka, Hiroshi Okada
We investigate a modular invariant two-loop neutrino mass model in a supersymmetric framework, where we introduce new fields as minimum as possible, expecting contributions o…
Hierarchical structure of physical Yukawa couplings from matter field Kähler metric
Keiya Ishiguro, Tatsuo Kobayashi, Hajime Otsuka
We study the impacts of matter field Kähler metric on physical Yukawa couplings in string compactifications. Since the Kähler metric is non-trivial in general, the kinetic mixing o…
Small flux superpotential in F-theory compactifications
Yoshinori Honma, Hajime Otsuka
We investigate whether a class of models describing F-theory compactifications admits a specific type of flux vacua with an exponentially small vacuum expectation value of the supe…
Landscape of Modular Symmetric Flavor Models
Keiya Ishiguro, Tatsuo Kobayashi, Hajime Otsuka
We study the moduli stabilization from the viewpoint of modular flavor symmetries. We systematically analyze stabilized moduli values in possible configurations of flux compactific…