Zobrazeno 1 - 10
of 413
pro vyhledávání: '"Otsuka, Hajime"'
We study the modular symmetry of localized modes on fixed points of $T^2/\mathbb{Z}_2$ orbifold. First, we find that the localized modes with even (odd) modular weight generally have $\Delta(6n^2)$ ($\Delta'(6n^2)$) modular flavor symmetry. Moreover,
Externí odkaz:
http://arxiv.org/abs/2410.05788
We discuss the stabilization of multiple moduli by utilizing Siegel modular forms in the framework of $Sp(2g,\mathbb{Z})$ modular invariant theories. We derive the stationary conditions at CP-conserving fixed points for a generic modular- and CP-inva
Externí odkaz:
http://arxiv.org/abs/2409.19261
We propose a reinforcement learning-based search strategy to explore new physics beyond the Standard Model. The reinforcement learning, which is one of machine learning methods, is a powerful approach to find model parameters with phenomenological co
Externí odkaz:
http://arxiv.org/abs/2409.10023
Phenomenological aspects of non-invertible symmetries, in particular the flavor structure of quarks and leptons, are studied. We start with a $\mathbb{Z}_M$ discrete symmetry and gauge $\mathbb{Z}_2$ so as to obtain a non-invertible symmetry. We stud
Externí odkaz:
http://arxiv.org/abs/2409.05270
We study the flavor structures of zero-modes, which are originated from the modular symmetry on $T^2_1\times T^2_2$ and its orbifold with magnetic fluxes. We introduce the constraint on the moduli parameters by $\tau_2=N\tau_1$, where $\tau_i$ denote
Externí odkaz:
http://arxiv.org/abs/2409.02458
Autor:
Kobayashi, Tatsuo, Otsuka, Hajime
We discuss non-invertible symmetries in toroidal compactifications of higher dimensional Yang-Mills theory with magnetic fluxes, which can be regarded as an effective action of type IIB string theory with magnetized D-branes. Specifically, we derive
Externí odkaz:
http://arxiv.org/abs/2408.13984
Publikováno v:
JHEP 10 (2024) 060
We study the stabilization of a twisted modulus in Type IIB flux compactifications on a mirror of the rigid Calabi-Yau threefold. By analyzing the effective action of twisted and untwisted moduli, we find that three-form fluxes satisfying the tadpole
Externí odkaz:
http://arxiv.org/abs/2406.08970
Publikováno v:
JHEP09(2024)024
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 demonstrate that th
Externí odkaz:
http://arxiv.org/abs/2405.18813
Autor:
Otsuka, Hajime, Yokokura, Ryo
We study primordial electromagnetic fields in effective actions of string theory. In contrast to a conventional scenario of producing primordial electromagnetic fields induced by the axion inflation, we deal with the Dirac-Born-Infeld action as a non
Externí odkaz:
http://arxiv.org/abs/2404.00698
We consider a $U(1)$ gauge theory on $M^4\times T^4$ with background magnetic fluxes. We show that a theory including arbitrary fluxes can always be studied in a theory involving only diagonal fluxes by appropriate coordinate transformations. It is f
Externí odkaz:
http://arxiv.org/abs/2403.16801