Zobrazeno 1 - 10
of 489
pro vyhledávání: '"Tatsuo Kobayashi"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-37 (2024)
Abstract We study the realization of spontaneous CP violation through moduli stabilization. In modular flavor models, the source of CP violation is the vacuum expectation values of the complex structure moduli of toroidal compact space. We demonstrat
Externí odkaz:
https://doaj.org/article/f351eb0ae7264d359f72de80ed6eb9fa
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-28 (2024)
Abstract We study the modular symmetry in heterotic string theory on Calabi-Yau threefolds. In particular, we examine whether moduli-dependent holomorphic Yukawa couplings are described by modular forms in the context of heterotic string theory with
Externí odkaz:
https://doaj.org/article/2d406b7b423d4fe7b1ba5612ec01e8de
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-16 (2024)
Abstract We propose a simple setup which can stabilize a modulus field of the finite modular symmetry by the Coleman-Weinberg potential. Our scenario leads to a large hierarchy suppressing instanton-like corrections e 2πiτ and to a light axion iden
Externí odkaz:
https://doaj.org/article/abacc54ed065460bb700f598fb5df5de
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-51 (2024)
Abstract We study an approach to construct Siegel modular forms from Sp(6, Z). Zero-mode wave functions on T 6 with magnetic flux background behave Siegel modular forms at the origin. Then T-symmetries partially break depending on the form of backgro
Externí odkaz:
https://doaj.org/article/d59d38c168284a5bad62f8fa715c308f
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-50 (2024)
Abstract We study structures of solutions for SUSY Minkowski F-term equations on two toroidal orientifolds with h 2,1 = 1. Following our previous study [1], with fixed upper bounds of a flux D3-brane charge N flux, we obtain a whole Landscape and a d
Externí odkaz:
https://doaj.org/article/157cc93f2ade49d19f0044049a6d8b39
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-23 (2024)
Abstract We propose an interesting assignment of positive modular weights for fields in a modular non-Abelian discrete flavor symmetry. By this assignment, we can construct inverse seesaw and linear seesaw models without any additional symmetries whi
Externí odkaz:
https://doaj.org/article/fb60a490ed904b93809828d15bc49903
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 12, Pp 1-11 (2023)
Abstract We propose models to explain the hierarchies of the quark masses and mixing by utilizing the $$S_4^\prime $$ S 4 ′ modular flavor symmetry. The hierarchy is realized by the modulus $$\tau $$ τ stabilized at $$\textrm{Im}\,\tau \gg 1$$ Im
Externí odkaz:
https://doaj.org/article/0467fa372f67452bb3a7f6e19e96ece1
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-26 (2023)
Abstract We construct an SU(5) grand unified model in which the hierarchies of the quark and lepton masses and mixing are explained by the Γ 6 ′ $$ {\Gamma}_6^{\prime } $$ modular flavor symmetry. The hierarchies are realized by the Froggatt-Niels
Externí odkaz:
https://doaj.org/article/60e2956ba28c4be1b217a933eb2a6bf5
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-34 (2023)
Abstract We discuss how the moduli in modular flavor symmetric models dynamically select enhanced symmetry points at which the residual modular symmetry renders extra matter fields massless. The moduli dynamics non-perturbatively produces the extra m
Externí odkaz:
https://doaj.org/article/6e9e9e8fb26941f2930f3051a2376a3d
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 7, Pp 1-40 (2023)
Abstract We study A 4 × A 4 × A 4 modular symmetric flavor models to realize quark mass hierarchies and mixing angles without fine-tuning. Mass matrices are written in terms of modular forms. At modular fixed points τ = i∞ and ω, A 4 is broken
Externí odkaz:
https://doaj.org/article/fc4fc8dff2f34d39bafdaa166e9f928f