1.

A model with flavordependent gauged symmetrySupported by National Center for Theoretical Sciences and MoST (MoST1042112M007003MY3 and MoST1072119M007013MY3)
/ Mu, Linping ; Okada, Hiroshi ; Geng, ChaoQiang
We propose a new model with flavordependent gauged symmetry in addition to the flavorblind symmetry in the Standard Model. [...]
Published in Chinese Phys. C 42 (2018) 123106
10.1088/16741137/42/12/123106
arXiv:1803.05633
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2.

Predictive neutrino mass textures with origin of flavor symmetries
/ Kobayashi, Tatsuo ; Nomura, Takaaki ; Okada, Hiroshi
We investigate origins of predictive onezero neutrino mass textures in a systematic way. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.055025
arXiv:1805.07101
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3.

Neutrino mass generation with large SU (2) L multiplets under local U(1)Lμ−Lτ symmetry
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a model of neutrino mass matrix with large SU(2) multiplets and gauged U(1)Lμ−Lτ symmetry, in which we introduce SU(2) quartet scalar and quintet fermions with nonzero Lμ−Lτ charge. [...]
Published in Physics letters B (2018)
10.1016/j.physletb.2018.07.011
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4.

ZeeBabu type model with $U(1{)}_{{L}_{\mu}{L}_{\tau}}$ gauge symmetry
/ Nomura, Takaaki ; Okada, Hiroshi
We extend the ZeeBabu model, introducing local $U(1{)}_{{L}_{\mu}{L}_{\tau}}$ symmetry with several singly charged bosons. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.095023
arXiv:1803.04795
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5.

Radiatively induced neutrino mass model with flavor dependent gauge symmetry
/ Lee, SangJong ; Nomura, Takaaki ; Okada, Hiroshi
We study a radiative seesaw model at oneloop level with a flavor dependent gauge symmetry U(1)μ−τ , in which we consider bosonic dark matter. [...]
Published in Nuclear Physics B (2018)
10.1016/j.nuclphysb.2018.04.010
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6.

A radiative seesaw model with higher order terms under an alternative U (1) B − L
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a model based on an alternative U(1)B−L gauge symmetry with 5 dimensional operators in the Lagrangian, and we construct the neutrino masses at oneloop level, and discuss lepton flavor violations, dark matter, and the effective number of neutrino species due to two massless particles in our model. [...]
Published in Physics letters B (2018)
10.1016/j.physletb.2018.04.034
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7.

Hidden $U\left(1\right)$ gauge symmetry realizing a neutrinophilic twoHiggsdoublet model with dark matter
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a neutrinophilic twoHiggsdoublet model with hidden local $U\left(1\right)$ symmetry, where active neutrinos are Dirac type, and a fermionic dark matter (DM) candidate is naturally induced as a result of remnant symmetry even after the spontaneous symmetry breaking. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.075038
arXiv:1709.06406
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8.

Generalized oneloop neutrino mass model with charged particles
/ Cheung, Kingman ; Okada, Hiroshi
We propose a radiative neutrinomass model by introducing 3 generations of fermion pairs ${E}^{(N+1)/2}{E}^{+(N+1)/2}$ and a couple of multicharged bosonic doublet fields ${\Phi}_{N/2},{\Phi}_{N/2+1}$, where $N=1$, 3, 5, 7, 9. [...]
Published in Physical Review D 97 (2018)
10.1103/PhysRevD.97.075027
arXiv:1801.00585
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9.

Neutrino mass in flavor dependent gauged lepton model
/ Nomura, Takaaki ; Okada, Hiroshi
We study a neutrino model introducing an additional nontrivial gauged lepton symmetry where the neutrino masses are induced at twoloop level, while the first and second chargedleptons of the standard model are done at oneloop level. [...]
Published in Phys. Rev. D 97 (2018)
10.1103/PhysRevD.97.055044
arXiv:1707.06083
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10.

Neutrinophilic two Higgs doublet model with dark matter under an alternative U(1)BL gauge symmetry
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a Dirac type active neutrino with rank two mass matrix and a Majorana fermion dark matter candidate with an alternative local U(1)BL extension of neutrinophilic two Higgs doublet model. [...]
Published in EPJC 78 (2018) 189
10.1140/epjc/s1005201856676
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