Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Kikuchi, Shota"'
Autor:
Kikuchi, Shota
We study quark and lepton flavor structures on magnetized $T^2/\mathbb{Z}_2$ twisted orbifold model. There are 6,460 number of flavor models but most of them cannot lead to realistic flavor observables because of the difficulties on realizing mass hi
Externí odkaz:
http://arxiv.org/abs/2403.17280
We study the large mass hierarchy and CP violation in the modular symmetric quark flavor models without fine-tuning. Mass matrices are written in terms of modular forms. Modular forms near the modular fixed points are approximately given by $\varepsi
Externí odkaz:
http://arxiv.org/abs/2312.11809
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 background
Externí odkaz:
http://arxiv.org/abs/2310.17978
We study the modular symmetry in magnetized $T^{2g}$ torus and orbifold models. The $T^{2g}$ torus has the modular symmetry $\Gamma_{g}=Sp(2g,\mathbb{Z})$. Magnetic flux background breaks the modular symmetry to a certain normalizer $N_{g}(H)$. We cl
Externí odkaz:
http://arxiv.org/abs/2309.16447
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 matter par
Externí odkaz:
http://arxiv.org/abs/2307.13230
We study of fermion zero-modes on magnetized $T^6/\mathbb{Z}_N$ orbifolds. In particular, we focus on non-factorizable orbifolds, i.e. $T^6/\mathbb{Z}_7$ and $T^6/\mathbb{Z}_{12}$ corresponding to $SU(7)$ and $E_6$ Lie lattices respectively. The numb
Externí odkaz:
http://arxiv.org/abs/2305.16709
Quark mass hierarchies and CP violation in $A_4\times A_4\times A_4$ modular symmetric flavor models
We study $A_4 \times A_4 \times A_4$ 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 $\tau = i\infty$ and $\omega$,
Externí odkaz:
http://arxiv.org/abs/2302.03326
Autor:
Kikuchi, Shota, Kobayashi, Tatsuo, Nasu, Kaito, Otsuka, Hajime, Takada, Shohei, Uchida, Hikaru
We revisit the modular weights in type IIB magnetized D-brane models. The simple analysis of wave function shows that the four-dimensional matter fields have the modular weight -1/2, but it may shift as one in type IIA intersecting D-brane models. Fo
Externí odkaz:
http://arxiv.org/abs/2301.10356
We study modular symmetric quark flavor models without fine-tuning. Mass matrices are written in terms of modular forms, and modular forms in the vicinity of the modular fixed points become hierarchical depending on their residual charges. Thus modul
Externí odkaz:
http://arxiv.org/abs/2301.03737
Publikováno v:
JHEP06(2023)013
We study fermion zero-mode wavefunctions on $T^4/Z_N$ orbifold with background magnetic fluxes. The number of zero-modes is analyzed by use of $Sp(4,\mathbb{Z})$ modular transformation. Conditions needed to realize three generation models are clarifi
Externí odkaz:
http://arxiv.org/abs/2211.07813