1.

Inverse seesaw model with large SU (2) L multiplets and natural mass hierarchy
/ Nomura, Takaaki ; Okada, Hiroshi
We propose an inverse seesaw model with large SU(2)L multiplet fields which realizes natural mass hierarchies among neutral fermions. [...]
Published in Physics letters B 792 (2019) 424429
10.1016/j.physletb.2019.04.006
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2.

Dark matter and $B$meson anomalies in a flavor dependent gauge symmetry
/ Hutauruk, Parada T. P. ; Nomura, Takaaki ; Okada, Hiroshi ; Orikasa, Yuta
A possibility of explaining the anomalies in the semileptonic $B$meson decay $B\to {K}^{*}\mu \overline{\mu}$ has been explored in the framework of the gauged $U(1{)}_{\mu \tau}$ symmetry. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.055041
arXiv:1901.03932
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3.

Linear seesaw model with hidden gauge symmetry
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a natural realization of a linear seesaw model with hidden gauge symmetry in which $SU(2{)}_{L}$ triplet fermions and one extra Higgs singlet, doublet, and quartet scalar are introduced. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.055033
arXiv:1806.07182
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4.

Inverse seesaw model with a natural hierarchy at the TeV scale
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a new kind of inverse seesaw model without any additional symmetries. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.055027
arXiv:1807.04555
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5.

A two loop radiative neutrino model
/ Baek, Seungwon ; Okada, Hiroshi ; Orikasa, Yuta
We explore the possibility to explain a bosonic dark matter candidate with a gauge singlet inside the loop to generate the neutrino mass matrix at twoloop level. [...]
Published in Nuclear Physics B 941 (2019) 744754
10.1016/j.nuclphysb.2019.03.002
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6.

Radiative neutrino mass in an alternative U (1) B − L gauge symmetry
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a neutrino model in which neutrino masses are generated at one loop level and three righthanded fermions have nontrivial charges under U(1)B−L gauge symmetry in no conflict with anomaly cancellation. [...]
Published in Nuclear Physics B 941 (2019) 586599
10.1016/j.nuclphysb.2019.02.025
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7.

CP violation of quarks in A 4 modular invariance
/ Okada, Hiroshi ; Tanimoto, Morimitsu
We discuss the quark mass matrices in the A4 modular symmetry, where the A4 triplet of Higgs is introduced for each upquark and downquark sectors, respectively. [...]
Published in Physics letters B 791 (2019) 5461
10.1016/j.physletb.2019.02.028
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8.

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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9.

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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10.

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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