Modular invariant hilltop inflation
Modular invariant hilltop inflation
In this paper we show that it is possible to achieve successful hilltop inflation in which the inflaton is identified as the modulus field in a modular invariant theory. The dilaton plays a crucial role in shaping the potential. Modular invariant gaugino condensation provides the mechanism for the modulus stabilisation after inflation. The inflationary trajectory lies on the lower boundary of the fundamental domain of the modulus field τ. Inflation starts near the fixed point τ = i, and ends at a point near τ = ω, which is the global de Sitter vacuum. We investigate the allowed parameter space for successful modular invariant hilltop inflation.
hep-ph, hep-th
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Wang, Xin
d8c1f805-fb9b-459c-8d96-21ba8fc85dbb
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Wang, Xin
d8c1f805-fb9b-459c-8d96-21ba8fc85dbb
King, Stephen F. and Wang, Xin
(2024)
Modular invariant hilltop inflation.
Journal of Cosmology and Astroparticle Physics, 2024 (7), [073].
(doi:10.1088/1475-7516/2024/07/073).
Abstract
In this paper we show that it is possible to achieve successful hilltop inflation in which the inflaton is identified as the modulus field in a modular invariant theory. The dilaton plays a crucial role in shaping the potential. Modular invariant gaugino condensation provides the mechanism for the modulus stabilisation after inflation. The inflationary trajectory lies on the lower boundary of the fundamental domain of the modulus field τ. Inflation starts near the fixed point τ = i, and ends at a point near τ = ω, which is the global de Sitter vacuum. We investigate the allowed parameter space for successful modular invariant hilltop inflation.
Text
2405.08924v3
- Author's Original
Text
King_2024_J._Cosmol._Astropart._Phys._2024_073
- Version of Record
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Accepted/In Press date: 15 July 2024
e-pub ahead of print date: 29 July 2024
Keywords:
hep-ph, hep-th
Identifiers
Local EPrints ID: 496491
URI: http://eprints.soton.ac.uk/id/eprint/496491
ISSN: 1475-7516
PURE UUID: 6b4bb89e-d79c-4b6d-8c5f-011aa7088578
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Date deposited: 16 Dec 2024 18:00
Last modified: 17 Dec 2024 17:57
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Author:
Xin Wang
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