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- Title
Scale-genesis — Origin of gravitational waves.
- Authors
Kubo, Jisuke
- Abstract
We consider two realistic models for a scale invariant extension of the standard model, which couples with a hidden non-Abelian gauge sector. At energies around TeV, the hidden sector becomes strongly interacting, thereby generating a robust energy scale, which is transferred to the standard model sector, triggering the electroweak symmetry breaking. At a finite temperature, i.e. in the early Universe, the generation of the robust energy scale appears as a strong first-order phase transition. We calculate the gravitational wave background spectrum for both models, which is produced by the first-order phase transition. We compare the results with the experimental sensitivity of LISA and DECIGO and find the gravitational wave signal may be detected at DECIGO.
- Subjects
GRAVITATIONAL waves; PHASE transitions; SIGNALS &; signaling; SPECTRUM analysis; NONABELIAN groups
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2018, Vol 33, Issue 31, pN.PAG
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X18440190