Publication Date:
2018-10-13
Description:
Author(s): Juan P. Beltrán Almeida and Nicolás Bernal We consider a scenario in which the inflaton ϕ is a pseudoscalar field nonminimally coupled to gravity through a term of the form X R ϕ 2 . The pseudoscalar is also coupled to a U ( 1 ) gauge field (or an ensemble of N gauge fields) through an axial coupling of the form ϕ F F ˜ . After [M. M. Anber and L. Sorb... [Phys. Rev. D 98, 083519] Published Fri Oct 12, 2018
Keywords:
Cosmology
Print ISSN:
0556-2821
Electronic ISSN:
1089-4918
Topics:
Physics
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