SCOAP3 Repository 20 records found  1 - 10nextSearch took 0.01 seconds. 
1. Sneutrino dark matter via pseudoscalar X -funnel meets inverse seesaw / Chang, Jung ; Cheung, Kingman ; Ishida, Hiroyuki ; Lu, Chih-Ting ; et al
In this paper we study sneutrino dark matter in a recently proposed supersymmetric electroweak-scale inverse seesaw model, in which the majority of the sneutrino dark matter particle is a mixture of the right-handed sneutrino Ñ c and the singlet field S ˜ $$ \tilde{S} $$ . [...]
Published in JHEP 1809 (2018) 071 10.1007/JHEP09(2018)071 arXiv:1806.04468
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2. Signals of new gauge bosons in gauged two higgs doublet model / Huang, Wei-Chih ; Ishida, Hiroyuki ; Lu, Chih-Ting ; Tsai, Yue-Lin Sming ; et al
Recently a gauged two Higgs doublet model, in which the two Higgs doublets are embedded into the fundamental representation of an extra local SU(2)H group, was constructed. [...]
Published in EPJC 78 (2018) 613 10.1140/epjc/s10052-018-6067-7
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3. Bosonic-seesaw portal dark matter / Ishida, Hiroyuki ; Matsuzaki, Shinya ; Yamaguchi, Yuya
We discuss a new type of Higgs-portal dark matter (DM) production mechanism, called the bosonic-seesaw portal (BSP) scenario. [...]
Published in PTEP 2017 (2017) 103B01 10.1093/ptep/ptx132 arXiv:1610.07137
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4. A supersymmetric electroweak scale seesaw model / Chang, Jung ; Cheung, Kingman ; Ishida, Hiroyuki ; Lu, Chih-Ting ; et al
In this paper we propose a novel supersymmetric inverse seesaw model which has only one additional Z 6 symmetry. [...]
Published in JHEP 1710 (2017) 039 10.1007/JHEP10(2017)039 arXiv:1707.04374
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5. Multiple-point principle with a scalar singlet extension of the standard model / Haba, Naoyuki ; Ishida, Hiroyuki ; Okada, Nobuchika ; Yamaguchi, Yuya
We suggest a scalar singlet extension of the standard model, in which the multiple-point principle (MPP) condition of a vanishing Higgs potential at the Planck scale is realized. [...]
Published in PTEP 2017 (2017) 013B03 10.1093/ptep/ptw186 arXiv:1608.00087
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6. Naturalness and lepton number/flavor violation in inverse seesaw models / Haba, Naoyuki ; Ishida, Hiroyuki ; Yamaguchi, Yuya
We introduce three right-handed neutrinos and three sterile neutrinos, and consider an inverse seesaw mechanism for neutrino mass generation. [...]
Published in JHEP 1611 (2016) 003 10.1007/JHEP11(2016)003 arXiv:1608.07447
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7. Lepton number violation by heavy Majorana neutrino in B decays / Asaka, Takehiko ; Ishida, Hiroyuki
Heavy Majorana neutrinos are predicted in addition to ordinary active neutrinos in the models with the seesaw mechanism. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.10.070
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8. On neutrinoless double beta decay in the ν MSM / Asaka, Takehiko ; Eijima, Shintaro ; Ishida, Hiroyuki
We consider the neutrinoless double beta ( 0νββ ) decay in the ν MSM, in which three right-handed neutrinos with masses below the electroweak scale are additionally introduced to the Standard Model. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.09.044
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9. Vacuum stability and naturalness in type-II seesaw / Haba, Naoyuki ; Ishida, Hiroyuki ; Okada, Nobuchika ; Yamaguchi, Yuya
We study the vacuum stability and perturbativity conditions in the minimal type-II seesaw model. [...]
Published in EPJC 76 (2016) 333 10.1140/epjc/s10052-016-4180-z
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10. A new dynamics of electroweak symmetry breaking with classically scale invariance / Haba, Naoyuki ; Ishida, Hiroyuki ; Kitazawa, Noriaki ; Yamaguchi, Yuya
We propose a new dynamics of the electroweak symmetry breaking in a classically scale invariant version of the standard model. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.02.052
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