1.

Neutrino mass in a gauged L μ − L τ model
/ Chen, ChuanHung ; Nomura, Takaaki
We study the origin of neutrino mass through leptonnumber violation and spontaneous U(1)Lμ−Lτ symmetry breaking. [...]
Published in Nuclear Physics B 940 (2019) 292311
10.1016/j.nuclphysb.2019.01.016
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2.

Charged Higgs boson contribution to ${B}_{q}^{}\to \ell \overline{\nu}$ and $\overline{B}\to (P,V)\ell \overline{\nu}$ in a generic twoHiggs doublet model
/ Chen, ChuanHung ; Nomura, Takaaki
We comprehensively study the charged Higgs boson contributions to the leptonic ${B}_{q}^{}\to \ell \overline{\nu}$ ($q=u$, $c$) and semileptonic $\overline{B}\to {X}_{q}\ell \overline{\nu}$ (${X}_{u}=\pi $, $\rho $; ${X}_{c}=D$, ${D}^{*}$) decays in the typeIII twoHiggs doublet model. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.095007
arXiv:1803.00171
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3.

ϵ ′ / ϵ from chargedHiggsinduced gluonic dipole operators
/ Chen, ChuanHung ; Nomura, Takaaki
We study the effect of chargedHiggsinduced chromomagnetic operator, Q8G(−)≡s¯σμνTaγ5dGaμν , on the Kaon direct CP violation Re(ϵ′/ϵ) . [...]
Published in Physics letters B 787 (2018) 182187
10.1016/j.physletb.2018.11.006
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4.

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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5.

Re (ϵ K ′ /ϵ K ) and K → π ν ν ¯ $$ K\to \pi \nu \overline{\nu} $$ in a twoHiggs doublet model
/ Chen, ChuanHung ; Nomura, Takaaki
The Kaon direct CP violation Re (ϵ K ′ /ϵ K ) below the experimental data of a 2 σ in the standard model, which is calculated using the RBCUKQCD lattice and a large N c dual QCD, indicates the necessity of a new physics effect. [...]
Published in JHEP 1808 (2018) 145
10.1007/JHEP08(2018)145
arXiv:1804.06017
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6.

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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7.

Scalar dark matter search from the extended ν THDM
/ Baek, Seungwon ; Das, Arindam ; Nomura, Takaaki
We consider a neutrino Two Higgs Doublet Model ( ν THDM) in which neutrinos obtain naturally small Dirac masses from the soft symmetry breaking of a global U(1) X symmetry. [...]
Published in JHEP 1805 (2018) 205
10.1007/JHEP05(2018)205
arXiv:1802.08615
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8.

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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9.

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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10.

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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