An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton
arXiv:1409.4029 · doi:10.1016/j.nuclphysb.2014.12.022
Abstract
In the context of a Coleman-Weinberg mechanism for the Higgs boson mass, we address the strong CP problem. We show that a DFSZ-like invisible axion model with a gauge-singlet complex scalar field S, whose couplings to the Standard Model are naturally ultra-weak, can solve the strong CP problem and simultaneously generate acceptable electroweak symmetry breaking. The ultra-weak couplings of the singlet S are associated with underlying approximate shift symmetries that act as custodial symmetries and maintain technical naturalness. The model also contains a very light pseudo-Goldstone dilaton that is consistent with cosmological Polonyi bounds, and the axion can be the dark matter of the universe. We further outline how a SUSY version of this model, which may be required in the context of Grand Unification, can avoid introducing a hierarchy problem.
9 pages
References in corpus (12)
- Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
- A solution to the hierarchy problem from an almost decoupled hidden sector within a classically scale invariant theory
- Novel Effects in Electroweak Breaking from a Hidden Sector
- Electroweak Symmetry Breaking induced by Dark Matter
- The Minimal Scale Invariant Extension of the Standard Model
- Dynamics of oscillating scalar field in thermal environment
- Axion cold dark matter in view of BICEP2 results
- Standard Model with a real singlet scalar and inflation
- Cosmological Constraints on Invisible Decay of Dark Matter
- Weak Gravitational Lensing as a Method to Constrain Unstable Dark Matter
- Can the Renormalization Group Improved Effective Potential be used to estimate the Higgs Mass in the Conformal Limit of the Standard Model?
- A Unique Determination of the Effective Potential in Terms of Renormalization Group Functions
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- A class of invisible axion models with FCNCs at tree level
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- Light scalars within the -conserving Aligned-two-Higgs-doublet model
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- Limits on scalar dark matter interactions with particles other than the photon via loop corrections to the scalar-photon coupling