Ultraviolet Sensitivity of Peccei-Quinn Inflation
In: Physical Review D 108, 063530 (2023); (2023)
Online
report
The radial direction of the Peccei--Quinn field can drive cosmic inflation, given a non-minimal coupling to gravity. This scenario has been considered to simultaneously explain inflation, the strong $CP$ problem, and dark matter. We argue that Peccei--Quinn inflation is extremely sensitive to higher-dimensional operators. Further combining with the discussion on the axion quality required for solving the strong $CP$ problem, we examine the validity of this scenario. We also show that after Peccei--Quinn inflation, resonant amplifications of the field fluctuation is inevitably triggered.
Comment: 26 pages plus appendices, 9 figures. v2: New appendix C, refs added . v3: Match with published version
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Ultraviolet Sensitivity of Peccei-Quinn Inflation
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Autor/in / Beteiligte Person: | Cin, Davide Dal ; Kobayashi, Takeshi |
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Quelle: | Physical Review D 108, 063530 (2023); (2023) |
Veröffentlichung: | 2023 |
Medientyp: | report |
DOI: | 10.1103/PhysRevD.108.063530 |
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