SCOAP3 Repository 8 records found  Search took 0.01 seconds. 
1. 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 two-loop level. [...]
Published in Nuclear Physics B 941 (2019) 744-754 10.1016/j.nuclphysb.2019.03.002
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2. Distinct signals of the gauge-Higgs unification in e + e − collider experiments / Funatsu, Shuichiro ; Hatanaka, Hisaki ; Hosotani, Yutaka ; Orikasa, Yuta
Effects of Kaluza–Klein excited neutral vector bosons ( Z′ bosons) in the gauge-Higgs unification on e+e−→q¯q,ℓ+ℓ− cross sections are studied, particularly in future e+e− collider experiments with polarized beams. [...]
Published in Physics letters B (2017) 10.1016/j.physletb.2017.10.068
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3. Radiative neutrino mass in alternative left–right model / Nomura, Takaaki ; Okada, Hiroshi ; Orikasa, Yuta
We propose a radiative seesaw model in an alternative left–right model without any bidoublet scalar fields, in which all the fermion masses in the standard model are generated through a canonical seesaw mechanism at the tree level. [...]
Published in EPJC 77 (2017) 103 10.1140/epjc/s10052-017-4657-4
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4. LHC 750 GeV diphoton excess in a radiative seesaw model / Kanemura, Shinya ; Nishiwaki, Kenji ; Okada, Hiroshi ; Orikasa, Yuta ; et al
We investigate a possibility for explaining the recently announced 750 GeV diphoton excess by the ATLAS and CMS experiments at the CERN LHC in a model with multiple doubly charged particles, that was originally suggested for explaining tiny neutrino masses through a three-loop effect in a natural way. [...]
Published in PTEP 2016 (2016) 123B04 10.1093/ptep/ptw164 arXiv:1512.09048
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5. Classically conformal radiative neutrino model with gauged B − L symmetry / Okada, Hiroshi ; Orikasa, Yuta
We propose a classically conformal model in a minimal radiative seesaw, in which we employ a gauged B−L symmetry in the standard model that is essential in order to work the Coleman–Weinberg mechanism well that induces the B−L symmetry breaking. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.07.039
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6. Discriminative phenomenological features of scale invariant models for electroweak symmetry breaking / Hashino, Katsuya ; Kanemura, Shinya ; Orikasa, Yuta
Classical scale invariance (CSI) may be one of the solutions for the hierarchy problem. [...]
Published in Physics letters B (2015) 10.1016/j.physletb.2015.11.044
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7. A three-loop neutrino model with global U(1) symmetry / Hatanaka, Hisaki ; Nishiwaki, Kenji ; Okada, Hiroshi ; Orikasa, Yuta
We study a three-loop induced neutrino model with a global U(1) symmetry at TeV scale, in which we naturally accommodate a bosonic dark matter candidate. [...]
Published in Nuclear Physics B 894 (2015) 268-283 10.1016/j.nuclphysb.2015.03.006
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8. Dark matter in the SO(5) U(1) gauge-Higgs unification / Funatsu, Shuichiro ; Hatanaka, Hisaki ; Hosotani, Yutaka ; Orikasa, Yuta ; et al
In the SO(5) U(1) gauge-Higgs unification, the lightest neutral component of SO(5)-spinor fermions (dark fermions), which are relevant as they have the observed unstable Higgs boson, becomes the dark matter of the universe. [...]
Published in PTEP 2014 (2014) 113B01 10.1093/ptep/ptu146 arXiv:1407.3574
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