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Multiple-point principle with a scalar singlet extension of the standard model

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Title: Multiple-point principle with a scalar singlet extension of the standard model
Authors: Haba, Naoyuki Browse this author
Ishida, Hiroyuki Browse this author
Okada, Nobuchika Browse this author
Yamaguchi, Yuya Browse this author
Issue Date: Jan-2017
Publisher: Oxford University Press
Journal Title: Progress of theoretical and experimental physics
Volume: 2017
Issue: 1
Start Page: 013B03
Publisher DOI: 10.1093/ptep/ptw186
Abstract: 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. Although there have been lots of attempts to realize the MPP at the Planck scale, a realization maintaining naturalness is quite difficult. Our model can easily achieve the MPP at the Planck scale without large Higgs mass corrections. It is worth noting that the electroweak symmetry can be radiatively broken in our model. In the naturalness point of view, the singlet scalar mass should be of O(1) TeV or less. We also consider a right-handed neutrino extension of the model for neutrino mass generation. The model does not affect the MPP scenario, and might keep the naturalness with the new particle mass scale beyond TeV, thanks to accidental cancellation of Higgs mass corrections.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山口 雄也

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