期刊
PHYSICAL REVIEW D
卷 83, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.83.083515
关键词
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资金
- JSPS [22840011]
- Global COE Program Global Center of Excellence for Physical Sciences Frontier.
- [19340054]
- [21740187]
- [21111006]
- Grants-in-Aid for Scientific Research [21740187, 22840011, 21111006] Funding Source: KAKEN
A new class of inflation models within the context of G inflation is proposed, in which the standard model Higgs boson can act as an inflaton thanks to Galileon-like nonlinear derivative interaction. The generated primordial density perturbation is shown to be consistent with the present observational data. We also make a general discussion on potential-driven G-inflation models, and find a new consistency relation between the tensor-to-scalar ratio r and the tensor spectral index n(T), r = -32 root 6n(T)/9, which is crucial in discriminating the present models from standard inflation with a canonical kinetic term.
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