Inflaton phenomenology via reheating in light of primordial gravitational waves and the latest BICEP/$Keck$ data

Abstract

We are in the era of precision cosmology which offers us a unique opportunity to investigate beyond standard model physics. Toward this endeavor, inflaton is assumed to be a perfect new physics candidate. In this submission, we explore the phenomenological impact of the latest observation of PLANCK and BICEP/$Keck$ data on the physics of inflation. We particularly study three different models of inflation, namely $\alpha$-attractor E, T, and the minimal plateau model. We further consider two different post-inflationary reheating dynamics driven by inflaton decaying into bosons and fermions. Given the latest data in the inflationary $(n_s-r)$ plane, we derive detailed phenomenological constraints on different inflaton parameters and the associated physical quantities, such as inflationary $e$-folding number, $N_k$, reheating temperatures $T_{\mathrm{re}}$. Apart from considering direct observational data, we further incorporate the bounds from primordial gravitational waves (PGWs) and different theoretical constraints. Rather than in the laboratory, our results illustrate the potential of present and future cosmological observations to look for new physics in the sky.

arXiv comment18 pages, 8 tables and 12 figures

References in corpus (42)

• Planck 2018 results. X. Constraints on inflation
• The Standard Model Higgs boson as the inflaton
• Towards the Theory of Reheating After Inflation
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Possibility of Direct Measurement of the Acceleration of the Universe Using 0.1 Hz Band Laser Interferometer Gravitational Wave Antenna in Space
• Rotation Curves of Spiral Galaxies
• Universality Class in Conformal Inflation
• Superconformal Inflationary $\alpha$-Attractors
• Beyond LISA: Exploring Future Gravitational Wave Missions
• Largest temperature of the radiation era and its cosmological implications
• MeV-scale Reheating Temperature and Thermalization of Neutrino Background
• What is the lowest possible reheating temperature?
• BICEP2 / Keck Array x: Constraints on Primordial Gravitational Waves using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season
• Structure of Resonance in Preheating after Inflation
• Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run
• Reheating constraints to inflationary models
• Starobinsky-like Inflationary Models as Avatars of No-Scale Supergravity
• CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
• Improved limits on the tensor-to-scalar ratio using BICEP and Planck
• Reheating predictions in single field inflation
• Implications of the NANOGrav results for inflation
• Preheating of Fermions
• Preheating with Trilinear Interactions: Tachyonic Resonance
• Reheating and Post-inflationary Production of Dark Matter
• Primordial gravitational waves from NANOGrav: a broken power-law approach
• On the Theory of Fermionic Preheating
• Inflaton Oscillations and Post-Inflationary Reheating
• Gravitational Production of Dark Matter during Reheating
• Gravitational portals in the early Universe
• Constraints on primordial gravitational waves from the Cosmic Microwave Background
• Decoding the phases of early and late time reheating through imprints on primordial gravitational waves
• CMB constraints on the inflaton couplings and reheating temperature in $\alpha$-attractor inflation
• BICEP/Keck Constraints on Attractor Models of Inflation and Reheating
• Gravitational reheating
• The double attractor behavior of induced inflation
• Curing inflationary degeneracies using reheating predictions and relic gravitational waves
• Connecting CMB anisotropy and cold dark matter phenomenology via reheating
• Small Field Polynomial Inflation: Reheating, Radiative Stability and Lower Bound
• Two phase reheating: CMB constraints on inflaton and dark matter phenomenology
• Radion Assisted Gauge Inflation
• Reheating Constraints on Inflaton, Dark Matter: Swampland Conjecture
• Minimal plateau inflationary cosmologies and constraints from reheating

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• Enhanced primordial gravitational waves from a stiff post-inflationary era due to an oscillating inflaton
• Constraining the history of reheating with the NANOGrav 15-year data
• Thermal and nonthermal dark matters with gravitational neutrino reheating
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• Freeze-in and freeze-out production of Higgs portal Majorana fermionic dark matter during and after reheating
• Post-inflationary production of particle Dark Matter: Hilltop and Coleman-Weinberg inflation
• ACT DR6 Insights on the Inflationary Attractor models and Reheating
• Axion Dark Matter Archaeology with Primordial Gravitational Waves
• Hamilton-Jacobi analysis of noncanonical inflation in $f(R,T)$ gravity: Constraints from Planck/ACT data, and theoretical bounds
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