A Global Overview of Starobinsky Inflation beyond slow-roll with CMB-BAO data

arXiv:2609.19296 · astro-ph.CO, gr-qc, hep-ph · Submitted 2026-09-16 · Read on arXiv

astro-ph.CO, gr-qc, hep-ph

Submitted: 2026-09-16

Updated: 2026-09-16

Comments: 22 pages, 8 figures, 6 tables

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Reheating — 32× in this paper · explained in 2 episodes
• Degeneracy — 19× in this paper · explained in 3 episodes
• ACT Data — 6× in this paper · explained in 1 episode
• Calibration — 5× in this paper · explained in 7 episodes
• Anisotropy — 4× in this paper · explained in 3 episodes
• Cosmic Linear Anisotropy Solving System — 2× in this paper
• Gravitational Lensing — 2× in this paper · explained in 2 episodes
• Standard Model — 2× in this paper
• Adam — 1× in this paper · explained in 2 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Cosmic Microwave Background — 1× in this paper
• Dark Energy Spectroscopic Instrument — 1× in this paper
• Decoupling — 1× in this paper · explained in 2 episodes
• Marginal Unbiased Score Expansion — 1× in this paper
• Matter Power Spectrum — 1× in this paper · explained in 2 episodes
• Nine-Year Wilkinson Microwave Anisotropy Probe — 1× in this paper
• Nonminimal coupling — 1× in this paper · explained in 2 episodes
• South Pole Telescope — 1× in this paper

Sources

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Planck 2018 results. X. Constraints on inflation
• The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $\Lambda$CDM Parameters
• SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field
• Higgs-Modular Inflation
• Has ACT measured radiative corrections to the tree-level Higgs-like inflation?
• Reheating ACTs on Starobinsky and Higgs inflation
• Improved Predictions on Higgs-Starobinsky Inflation and Reheating with ACT DR6 and Primordial Gravitational Waves
• Starobinsky like inflation and EGB Gravity in the light of ACT
• Keeping the relation between the Starobinsky model and no-scale supergravity ACTive
• Curvature corrections to Starobinsky inflation can explain the ACT results
• Kinetically Modified Palatini Inflation Meets ACT Data
• Power law $\alpha$-Starobinsky inflation
• Inflationary attractors and radiative corrections in light of ACT data
• Primordial black holes save $R^2$ inflation
• Classification of $f(R)$ Theories Of Inflation And The Uniqueness of Starobinsky Model
• The Preheating Stage on The Starobinsky Inflation after ACT
• The BAO-CMB Tension and Implications for Inflation
• Deformations of Starobinsky Inflation in No-Scale SU(5) and SO(10) GUTs
• Confronting Rainbow-deformed $f(R)$ Gravity with the ACT Data

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