1.

Lefthanded colorsextet diquark in the kaon system
/ Chen, ChuanHung ; Nomura, Takaaki
We investigate whether a colorsextet scalar diquark (${H}_{6}$) coupling to the lefthanded quarks contributes to the $\Delta S=2$ process. [...]
Published in Physical Review D 99 (2019)
10.1103/PhysRevD.99.115006
External links: pdf; xml

2.

A oneloop neutrino mass model with SU (2) L multiplet fields
/ Nomura, Takaaki ; Okada, Hiroshi
We propose a oneloop neutrino mass model with several SU(2)L multiplet fermions and scalar fields in which the inert feature of a scalar to realize the oneloop neutrino mass can be achieved by the cancellation among Higgs couplings thanks to nontrivial terms in the Higgs potential and to present it in a simpler way. [...]
Published in Nuclear Physics B (2019)
10.1016/j.nuclphysb.2019.114621
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3.

b→ sμ + μ − anomalies and related phenomenology in U 1 B 3 − x μ L μ − x τ L τ $$ \mathrm{U}{(1)}_{{\mathrm{B}}_3{\mathrm{x}}_{\mu }{\mathrm{L}}_{\mu }{\mathrm{x}}_{\tau }{\mathrm{L}}_{\tau }} $$ flavor gauge models
/ Ko, P. ; Nomura, Takaaki ; Yu, Chaehyun
We propose a generation dependent lepton/baryon gauge symmetry, U 1 B 3 − x μ L μ − x τ L τ ≡ U 1 X $$ \mathrm{U}{(1)}_{B_3{x}_{\mu }{L}_{\mu }{x}_{\tau }{L}_{\tau }}\equiv \mathrm{U}{(1)}_X $$ (with x μ + x τ = 1 for anomaly cancellation), as a possible solution for the b → sμ + μ − anomalies. [...]
Published in JHEP 1904 (2019) 102
10.1007/JHEP04(2019)102
arXiv:1902.06107
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4.

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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5.

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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6.

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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7.

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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8.

ϵ K and ϵ ′/ ϵ in a diquark model
/ Chen, ChuanHung ; Nomura, Takaaki
Based on the calculations using the lattice QCD by the RBCUKQCD collaboration and a large N c dual QCD, the resulting ϵ ′ /ϵ , which is less than the experimental data by more than a 2 σ in the standard model (SM), suggests the necessity of a new physics effect. [...]
Published in JHEP 1903 (2019) 009
10.1007/JHEP03(2019)009
arXiv:1808.04097
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9.

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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10.

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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