Single-field D-type inflation in the minimal supergravity in light of Planck-ACT-SPT data

Abstract

The minimal supergravity framework is applied to a construction of new D-type single-field models of inflation in agreement with precision measurements of the cosmic microwave background radiation by Planck Collaboration, BICEP/Keck Collaboration, Atacama Cosmology Telescope and South Pole Telescope. The inflaton potential, the power spectrum of scalar perturbations, the cosmological observables and the reconstruction procedure can be very simple when using the e-folds as the running variable.

18 pages, 2 figures; V.2: references added

References in corpus (14)

• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• The Unity of Cosmological Attractors
• Fractional attractors in light of the latest ACT observations
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• Higgs-Modular Inflation
• Curvature corrections to Starobinsky inflation can explain the ACT results
• Independent connection in ACTion during inflation
• On the equivalence between Starobinsky and Higgs inflationary models in gravity and supergravity
• Cosmic Inflation at the Crossroads
• Non-minimal coupling in light of ACT
• Increase of $n_s$ in regularized pole inflation & Einstein-Cartan gravity
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• Fitting power spectrum of scalar perturbations for primordial black hole production during inflation
• $F$-term Multi-Field Inflation in Supergravity without Stabiliser Superfields

Cited by in corpus (2)

• Induced-Gravity Palatini-Like Higgs Inflation in Supergravity Confronts ACT DR6
• Constraints on non-canonical chaotic inflation from ACT DR6 and BICEP/Keck data