63 citations · 407 across the 25 of their papers we have counts for
26 papers
Index and winding numbers on orbifolds with magnetic flux
Hiroki Imai, Makoto Sakamoto, Maki Takeuchi +1
We analyze the number of independent chiral zero modes and the winding numbers at the fixed points on () orbifolds with magnetic flux. In the case o…
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…
Index theorem on magnetized blow-up manifold of
Tatsuo Kobayashi, Hajime Otsuka, Makoto Sakamoto +3
We investigate blow-up manifolds of orbifolds with magnetic flux . Since the blow-up manifolds have no singularities, we can apply the Atiyah-S…
Modular symmetry and zeros in magnetic compactifications
Yoshiyuki Tatsuta
We discuss the modular symmetry and zeros of zero-mode wave functions on two-dimensional torus and toroidal orbifolds () with a background homog…
Index theorem on orbifolds
Makoto Sakamoto, Maki Takeuchi, Yoshiyuki Tatsuta
We investigate chiral zero modes and winding numbers at fixed points on orbifolds. It is shown that the Atiyah-Singer index theorem for the chiral zero modes lea…
Tachyon condensation in magnetic compactifications
Wilfried Buchmuller, Emilian Dudas, Yoshiyuki Tatsuta
Intersecting D-brane models and their T-dual magnetic compactifications provide an attractive framework for particle physics, allowing for chiral fermions and supersymmetry breakin…
Zero-mode counting formula and zeros in orbifold compactifications
Makoto Sakamoto, Maki Takeuchi, Yoshiyuki Tatsuta
We thoroughly analyze the number of independent zero modes and their zero points on the toroidal orbifold () with magnetic flux background, inspi…
Quantum corrections for D-brane models with broken supersymmetry
Wilfried Buchmuller, Emilian Dudas, Yoshiyuki Tatsuta
Intersecting D-brane models and their T-dual magnetic compactifications yield attractive models of particle physics where magnetic flux plays a twofold role, being the source of fe…
Wavefunctions on with flux and branes
Sosuke Imai, Yoshiyuki Tatsuta
We formulate a six dimensional gauge theory compactified on a (two dimensional) sphere with flux and localized brane sources. Profiles of the lowest Kaluza-Klein (KK)…
Magnetized orbifolds and localized flux
Wilfried Buchmuller, Markus Dierigl, Yoshiyuki Tatsuta
Magnetized orbifolds play an important role in compactifications of string theories and higher-dimensional field theories to four dimensions. Magnetic flux leads to chiral fermions…
Effects of localized μ-terms at the fixed points in magnetized orbifold models
Hiroyuki Abe, Makoto Ishida, Yoshiyuki Tatsuta
We consider magnetized orbifolds, where the supersymmetric mass term for a pair of up- and down-type Higgs (super)fields, called -term, is localized at the orbifold fixed points…
Seesaw mechanism in magnetic compactifications
Makoto Ishida, Kenji Nishiwaki, Yoshiyuki Tatsuta
In this paper, we explore a new avenue to a natural explanation of the observed tiny neutrino masses with a dynamical realization of the three-generation structure in the neutrino…
(De)Constructing magnetized dimensions
Yoshiyuki Tatsuta, Akio Tomiya
We provide an origin of family replications in the standard model of particle physics by constructing renormalizable, asymptotically free, four dimensional local gauge theories tha…
Brane-localized masses in magnetic compactifications
Makoto Ishida, Kenji Nishiwaki, Yoshiyuki Tatsuta
We discuss effects of the brane-localized mass terms on the fixed points of the toroidal orbifold under the presence of background magnetic fluxes, where multiple lowest…
Inflation from periodic extra dimensions
Tetsutaro Higaki, Yoshiyuki Tatsuta
We discuss a realization of a small field inflation based on string inspired supergravities. In theories accompanying extra dimensions, compactification of them with small radii is…
Supersymmetric models on magnetized orbifolds with flux-induced Fayet-Iliopoulos terms
Hiroyuki Abe, Tatsuo Kobayashi, Keigo Sumita +1
We study supersymmetric (SUSY) models derived from the ten-dimensional SUSY Yang- Mills theory compactified on magnetized orbifolds, with nonvanishing Fayet-Iliopoulos (FI) terms i…
CP-violating phase on magnetized toroidal orbifolds
Tatsuo Kobayashi, Kenji Nishiwaki, Yoshiyuki Tatsuta
We study the CP-violating phase of the quark sector in the flavor model on with non-vanishing magnetic fluxes, where properties of possible origins…
Edge of a cliff
Yusuke Shimizu, Yoshiyuki Tatsuta
We discuss the neutrino flavor structures in the Occam's razor approach for the Dirac neutrino mass matrices. We assume that the charged lepton mass matrix takes a diagonal base, w…
Comprehensive Analysis of Yukawa Hierarchies on with Magnetic Fluxes
Yukihiro Fujimoto, Tatsuo Kobayashi, Kenji Nishiwaki +2
Based on the result of classification in our previous work, we exhaustively investigate Yukawa sector of model on magnetized orbifolds , , $T^{2}/Z…
Double Froggatt--Nielsen Mechanism
Kenji Nishiwaki, Yusuke Shimizu, Yoshiyuki Tatsuta
We present a doubly parametric extension of the standard Froggatt--Nielsen (FN) mechanism. As is well known, mass matrices of the up- and down-type quark sectors and the charged le…
Majorana neutrino mass structure induced by rigid instatons on toroidal orbifold
Tatsuo Kobayashi, Yoshiyuki Tatsuta, Shohei Uemura
We study effects of D-brane instantons wrapping rigid cycles on Z2*Z2' toroidal orbifold. We compute Majorana masses induced by rigid D-brane instantons and realize bimaximal mixin…
D-brane instanton induced mu-terms and their hierarchical structure
Hiroyuki Abe, Tatsuo Kobayashi, Yoshiyuki Tatsuta +1
We study the mu-term matrix of Higgs pairs induced by the D-brane instanton effects in intersecting D6-brane models compactified on T6. It is found that the mu-term matrix has a ce…
Classification of three-generation models on magnetized orbifolds
Tomo-hiro Abe, Yukihiro Fujimoto, Tatsuo Kobayashi +4
We classify the combinations of parameters which lead three generations of quarks and leptons in the framework of magnetized twisted orbifolds on , , an…
Gaussian Froggatt-Nielsen mechanism on magnetized orbifolds
Hiroyuki Abe, Tatsuo Kobayashi, Keigo Sumita +1
We study the structure of Yukawa matrices derived from the supersymmetric Yang-Mills theory on magnetized orbifolds, which can realize the observed quark and charged lepton mass ra…