Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Uemura, Shohei"'
Autor:
Ohki, Hiroshi, Uemura, Shohei
Publikováno v:
JHEP 10 (2024) 213
We study physical implications of general CP symmetry including CP-like symmetry. Various scattering amplitudes of CP asymmetry are calculated in CP-like symmetric models. We explicitly show that the CP-like transformation leads to a specific relatio
Externí odkaz:
http://arxiv.org/abs/2310.16710
We study the modular symmetry anomaly in magnetized orbifold models. The non-perturbative effects such as D-brane instanton effects can break tree-level symmetry. We study which part of the modular symmetry is broken explicitly by Majorana mass terms
Externí odkaz:
http://arxiv.org/abs/2202.05425
We study Froggatt-Nielsen (FN) like flavor models with modular symmetry. The FN mechanism is a convincing solution to the flavor puzzle in quark sector. The FN mechanism requires an extra $U(1)$ gauge symmetry which is broken at high energy. Alternat
Externí odkaz:
http://arxiv.org/abs/2105.06237
Autor:
Hoshiya, Kouki, Kikuchi, Shota, Kobayashi, Tatsuo, Nasu, Kaito, Uchida, Hikaru, Uemura, Shohei
We study Majorana neutrino masses induced by D-brane instanton effects in magnetized orbifold models. We classify possible cases, where neutrino masses can be induced. Three and four generations are favored in order to generate neutrino masses by D-b
Externí odkaz:
http://arxiv.org/abs/2103.07147
Publikováno v:
Phys. Rev. D 102, 085008 (2020)
We study the modular invariance in magnetized torus models. Modular invariant flavor model is a recently proposed hypothesis for solving the flavor puzzle, where the flavor symmetry originates from modular invariance. In this framework coupling const
Externí odkaz:
http://arxiv.org/abs/2003.04174
Publikováno v:
Phys. Rev. D 102, 045005 (2020)
We study Fayet-Iliopoulos (FI) terms of six-dimensional supersymmetric Abelian gauge theory compactified on a $T^2/Z_2$ orbifold. Such orbifold compactifications can lead to localized FI-terms and instability of bulk zero modes. We study 1-loop corre
Externí odkaz:
http://arxiv.org/abs/2003.03512
Publikováno v:
Phys. Rev. D 100, 065020 (2019)
We study Fayet-Iliopoulos (FI) terms of 5-dimensional supersymmetric $U(1)$ gauge theory compactified on $S^1/Z_2$. In this model, loop diagrams including matter hypermultiplets and brane chiral multiplets induce FI-terms localized at the fixed point
Externí odkaz:
http://arxiv.org/abs/1906.08002
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Kobayashi, Tatsuo, Seto, Osamu, Takada, Shintaro, Tatsuishi, Takuya H., Uemura, Shohei, Yamamoto, Junji
Publikováno v:
Prog Theor Exp Phys (2019)
We study K\"ahler moduli stabilization in IIB superstring theory. We propose a new moduli stabilization mechanism by the supersymmetry-braking chiral superfield which is coupled to K\"ahler moduli in K\"ahler potential. We also study uplifting of the
Externí odkaz:
http://arxiv.org/abs/1812.02376
Publikováno v:
Phys. Rev. D 96, 026007 (2017)
We investigate the axion inflation model derived by poly-instanton effects in type II superstring theories. Poly-instanton effects are instanton effects corrected by another instanton and it can generate the modulus-axion potential with the double ex
Externí odkaz:
http://arxiv.org/abs/1705.04088