arXiv : Chaotic inflation with four-form couplings

Lee, Hyun Min

doi:10.1103/PhysRevD.101.043523

Article
Report number	arXiv:1908.05475 ; CERN-TH-2019-228
Title	Chaotic inflation with four-form couplings
Author(s)	Lee, Hyun Min (Chung-Ang U.)
Publication	2020-02-20
Imprint	2019-08-15
Number of pages	6
Note	6 pages, two figures, revtex4 style, Accepted for publication in Phys. Rev. D
In:	Phys. Rev. D 101 (2020) 043523
DOI	10.1103/PhysRevD.101.043523
Subject category	hep-ph ; Particle Physics - Phenomenology
Abstract	We consider chaotic inflation models with a pseudo-scalar field containing the general couplings to the four-form flux. The four-form mixing with the pseudo-scalar field induces a quadratic potential for inflaton while the coexisting four-form mixing with graviton generates a non-minimal gravity coupling for inflaton. The shift symmetry is respected by the derived inflaton couplings and it is broken spontaneously only by the fixed four-form flux. We discuss the success of inflationary predictions and robustness against higher order terms. Finally, the built-in reheating mechanism is also addressed.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2020-2024 authors (License: CC-BY-4.0)

$Upper: Schematic view of the Einstein-frame potential $V_I(\phi)$. The slow-roll inflation takes place along the blue line, inflation ends at the star point, and reheating occurs along the red line. Lower: Schematic view of the non-canonical inflaton kinetic term $K(\phi)$ in Einstein frame, with the same color notations as in the upper plot. In both plots, the region with $\Omega<0$ is not physically viable.$ $Upper: Schematic view of the Einstein-frame potential $V_I(\phi)$. The slow-roll inflation takes place along the blue line, inflation ends at the star point, and reheating occurs along the red line. Lower: Schematic view of the non-canonical inflaton kinetic term $K(\phi)$ in Einstein frame, with the same color notations as in the upper plot. In both plots, the region with $\Omega<0$ is not physically viable.$ $Upper: Schematic view of the Einstein-frame potential $V_I(\phi)$. The slow-roll inflation takes place along the blue line, inflation ends at the star point, and reheating occurs along the red line. Lower: Schematic view of the non-canonical inflaton kinetic term $K(\phi)$ in Einstein frame, with the same color notations as in the upper plot. In both plots, the region with $\Omega<0$ is not physically viable.$ Show more plots

Corresponding record in: Inspire

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記錄創建於2020-02-21，最後更新在2023-10-04

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