Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant
Abstract
:1. Introduction
2. On Global Symmetries
2.1. The ’t Hooft Mechanism
2.2. Breaking Scales
3. The “Invisible” Axion
3.1. Axion Inhomogeneities in Galaxies and Mini-Clusters
3.2. The Domain Wall Problem in “Invisible” Axion Models
3.3. Searches of “Invisible” Axions
4. A BCM as Dark Energy
5. Inflation and Gravity Waves in the Beginning
6. Global Symmetries and Non-Abelian Gauge Groups
7. Discussion and Conclusions
Acknowledgments
Conflicts of Interest
References
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1. | With two light quarks, is larger than . |
2. | If is much lower than the above bound at the level of GeV, the axion condensation can convert to thermal axions [78]. |
3. | For the , the symmetry is better to be exact at tree level or almost exact toward the solution of the strong CP problem with as discussed in Section 3. |
4. | If the symmetry breaking is soly by the non-Abelian anomaly, then we obtain . |
KSVZ: | DFSZ: pair | Higgs | ||
---|---|---|---|---|
0 | non-SUSY | |||
non-SUSY | ||||
GUTs | ||||
SUSY | ||||
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Kim, J.E. Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant. Universe 2017, 3, 68. https://doi.org/10.3390/universe3040068
Kim JE. Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant. Universe. 2017; 3(4):68. https://doi.org/10.3390/universe3040068
Chicago/Turabian StyleKim, Jihn E. 2017. "Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant" Universe 3, no. 4: 68. https://doi.org/10.3390/universe3040068