313 citations · 2.1k across the 66 of their papers we have counts for
11 papers · 1 filter
LHC 750 GeV Diphoton excess in a radiative seesaw model
Shinya Kanemura, Kenji Nishiwaki, Hiroshi Okada +3
We investigate a possibility for explaining the recently announced 750\,GeV diphoton excess by the ATLAS and the CMS experiments at the CERN LHC in a model with multiple doubly cha…
Radiative Neutrino Model with Inert Triplet Scalar
Hiroshi Okada, Yuta Orikasa
We study a one-loop induced radiative neutrino model with an inert isospin triplet scalar field, in which we discuss current neutrino oscillation data, lepton flavor violations, mu…
Nonthermal dark matter models and signals
Hiroshi Okada, Yuta Orikasa, Takashi Toma
Many experiments exploring weakly interacting massive particles (WIMPs) such as direct, indirect and collider searches have been carried out until now. However, a clear signal of a…
Higgs Triplet Model with Classically Conformal Invariance
Hiroshi Okada, Yuta Orikasa, Kei Yagyu
We discuss an extension of the minimal Higgs triplet model with a classically conformal invariance and with a gauged symmetry. In our scenario, tiny masses of neutrino…
Two-loop Neutrino Model with Exotic Leptons
Hiroshi Okada, Yuta Orikasa
We propose a two-loop induced neutrino mass model, in which we show some bench mark points to satisfy the observed neutrino oscillation, the constraints of lepton flavor violations…
Discriminative phenomenological features of scale invariant models for electroweak symmetry breaking
Katsuya Hashino, Shinya Kanemura, Yuta Orikasa
Classical scale invariance (CSI) may be one of the solutions for the hierarchy problem. Realistic models for electroweak symmetry breaking based on CSI require extended scalar sect…
Three Loop Neutrino Model with Isolated
Kenji Nishiwaki, Hiroshi Okada, Yuta Orikasa
We propose a three loop radiative neutrino mass scenario with an isolated doubly charged singlet scalar without couplings to the charged leptons, while two other singl…
Two Loop Neutrino Model with Dark Matter and Leptogenesis
Shoichi Kashiwase, Hiroshi Okada, Yuta Orikasa +1
We study a two-loop induced radiative neutrino model at TeV scale with global symmetry, in which we analyze dark matter and resonant leptogenesis. The model includes two kin…
The classically conformal BL extended Ma model
Yuta Orikasa
We discuss a classically conformal radiative seesaw model with gauged BL symmetry, in which the BL symmetry breaking can occur through the Coleman-Weinberg mechanism. As a re…
Radiative Seesaw in Minimal 3-3-1 Model
Hiroshi Okada, Nobuchika Okada, Yuta Orikasa
We study the neutrino sector in a minimal model, in which its mass is generated at one-loop level with the charged lepton mass, and hence there exists a stro…
Accidental Dark Matter: Case in the Scale Invariant Local Models
Jun Guo, Zhaofeng Kang, P. Ko +1
We explore the idea of accidental dark matter (aDM) stability in the scale invariant local model, which is a theory for neutrino and at the same time radiatively break…