ALP inflation and Big Bang on Earth

Abstract We study a hilltop inflation model where an axion-like particle (ALP) plays the role of the inflaton. We find that, for a broad class of potentials, the decay constant and the mass at the potential minimum satisfy the relation, m ϕ  ∼ 10− 6 f, to explain the CMB normalization. The ALP is ne...

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Bibliographic Details
Main Authors: Fuminobu Takahashi, Wen Yin
Format: Article
Language:English
Published: SpringerOpen 2019-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2019)095