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  • QuarticHilltopSquared

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Squared Quartic Hilltop Inflation

Research output: Contribution to journalJournal articlepeer-review

Published
Article number123542
<mark>Journal publication date</mark>15/12/2021
<mark>Journal</mark>Physical Review D
Issue number12
Volume104
Number of pages14
Publication StatusPublished
<mark>Original language</mark>English

Abstract

A correction to the quartic hilltop inflationary model is proposed to account for stabilizing terms in the potential. We derive analytical predictions for the spectral index
n
s
and tensor-scalar ratio
r
which lie within the Planck 2018 survey bounds. The reheating predictions of the corrected model are investigated and by considering the reheating temperature we further constrain the
(
n
s
,
r
)
parameter space. It is shown that the correction terms are physically important during inflation and generally need to be accounted for when considering hilltop models as a candidate for inflation.

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© 2021 American Physical Society