Topological higgs inflation: Origin of standard model criticality

Yuta Hamada, Kin Ya Oda, Fuminobu Takahashi

研究成果: Article査読

18 被引用数 (Scopus)

抄録

The measured values of the Higgs and top masses and of the strong gauge coupling constant point to the near-criticality of the Standard Model, where two vacua at the electroweak and Planck scales are quasidegenerate. We argue that the criticality is required by the occurrence of an eternal topological inflation induced by the Higgs potential. The role of this inflation is to continuously create a sufficiently flat and homogeneous Universe, providing the necessary initial condition for the subsequent slow-roll inflation that generates the density perturbations of the right magnitude. While the condition for the topological Higgs inflation is only marginally satisfied in the Standard Model, it can be readily satisfied if one introduces the right-handed neutrinos and/or the nonminimal coupling to gravity; currently unknown quantum gravity corrections to the potential may also help. We also discuss the B-L Higgs inflation as a possible origin of the observed density perturbations. Its necessary initial condition, the restored B-L symmetry, can be naturally realized by the preceding topological Higgs inflation.

本文言語English
論文番号097301
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
90
9
DOI
出版ステータスPublished - 2014 11月 21

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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