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Clockwork inflation with non-minimal coupling

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Title
Clockwork inflation with non-minimal coupling
Author(s)
Chang Sub Shin; Seong Chan Park
Publication Date
2019-06
Journal
EUROPEAN PHYSICAL JOURNAL C, v.79, no.6, pp.529 -
Publisher
SPRINGER
Abstract
© 2019, The Author(s).We suggest a clockwork mechanism for a Higgs-like inflation with the non-minimal coupling term ξϕ2R. The seemingly unnatural ratio of parameters, λ/ ξ2∼ 10 - 10 of the self quartic coupling of the inflaton, λ, and the non-minimal coupling, ξ, is understood by exponential suppression of λ by the clockwork mechanism, instead of a large non-minimal coupling. The portal interaction between the inflaton and the Standard Model (SM) Higgs doublet is introduced as a source of reheating and the inflaton mass. Successful realization of inflation requires that the inflaton gets a mass around (sub) GeV scale, which would lead to observable consequences depending on reheating process and its lifetime
URI
https://pr.ibs.re.kr/handle/8788114/6377
ISSN
1434-6044
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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