An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton
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. As a result, 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.
- Authors:
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1198352
- Alternate Identifier(s):
- OSTI ID: 1226290
- Report Number(s):
- FERMILAB-PUB-14-414-T
Journal ID: ISSN 0550-3213; S0550321314004003; PII: S0550321314004003
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- Nuclear Physics. B
- Additional Journal Information:
- Journal Name: Nuclear Physics. B Journal Volume: 891 Journal Issue: C; Journal ID: ISSN 0550-3213
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Allison, Kyle, Hill, Christopher T., and Ross, Graham G. An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton. Netherlands: N. p., 2015.
Web. doi:10.1016/j.nuclphysb.2014.12.022.
Allison, Kyle, Hill, Christopher T., & Ross, Graham G. An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton. Netherlands. https://doi.org/10.1016/j.nuclphysb.2014.12.022
Allison, Kyle, Hill, Christopher T., and Ross, Graham G. Sun .
"An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton". Netherlands. https://doi.org/10.1016/j.nuclphysb.2014.12.022.
@article{osti_1198352,
title = {An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton},
author = {Allison, Kyle and Hill, Christopher T. and Ross, Graham G.},
abstractNote = {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. As a result, 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.},
doi = {10.1016/j.nuclphysb.2014.12.022},
journal = {Nuclear Physics. B},
number = C,
volume = 891,
place = {Netherlands},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}
https://doi.org/10.1016/j.nuclphysb.2014.12.022
Web of Science
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