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Flaxion: a minimal extension to solve puzzles in the standard model
Open accessAbstract
We propose a minimal extension of the standard model which includes only one additional complex scalar field, flavon, with flavor-dependent global U(1) symmetry. It not only explains the hierarchical flavor structure in the quark and lepton sector (including neutrino sector), but also solves the strong CP problem by identifying the CP-odd component of the flavon as the QCD axion, which we call flaxion. Furthermore, the flaxion model solves the cosmological puzzles in the standard model, i.e., origin of dark matter, baryon asymmetry of the universe, and inflation. We show that the radial component of the flavon can play the role of inflaton without isocurvature nor domain wall problems. The dark matter abundance can be explained by the flaxion coherent oscillation, while the baryon asymmetry of the universe is generated through leptogenesis.
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Cites
Barygenesis without grand unification
Fukugita, M., & Yanagida, T. (1986) · Physics Letters B · doi:10.1016/0370-2693(86)91126-3 · Cited by 3,879
Cosmological Inflation and Large-Scale Structure
Liddle, A. R., & Lyth, D. H. (2000) · doi:10.1017/cbo9781139175180 · Cited by 2,317
Cited by
New experimental approaches in the search for axion-like particles
Irastorza, I. G., & Redondo, J. (2018) · Progress in Particle and Nuclear Physics · doi:10.1016/j.ppnp.2018.05.003 · Cited by 745
The landscape of QCD axion models
Di Luzio, L., Giannotti, M., Nardi, E., & Visinelli, L. (2020) · Physics Reports · doi:10.1016/j.physrep.2020.06.002 · Cited by 657
Long-lived particles at the energy frontier: the MATHUSLA physics case
Curtin, D., Drewes, M., McCullough, M., Meade, P., Mohapatra, R. N., Shelton, J., Shuve, B., Accomando, E., Alpigiani, C., Antusch, S., et al. (2019) · Reports on Progress in Physics · doi:10.1088/1361-6633/ab28d6 · Cited by 384
Metadata
- Authors
- Ema, Y., Hamaguchi, K., Moroi, T., & Nakayama, K.
- Venue
- Journal of High Energy Physics
- Published
- 2017-01
- Volume
- 2017
- Issue
- 1
- ISSN
- 1029-8479 (ISSN-L)
- OpenAlex
- W2580688983
- Cited by
- 228
- References
- 2
- FWCI
- 10.02
- Type
- journal article
- Language
- en
- Open access
- diamond
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- Ema, Y., Hamaguchi, K., Moroi, T., & Nakayama, K. (2017). Flaxion: a minimal extension to solve puzzles in the standard model. Journal of High Energy Physics. https://doi.org/10.1007/jhep01(2017)096
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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