First constraints on non-minimally coupled Natural and Coleman-Weinberg inflation and massive neutrino self-interactions with Planck+BICEP/Keck

Abstract

In this work, for the first time in literature, we study the predictions of non-minimally coupled Natural and Coleman-Weinberg potentials in the $n_s-r$ plane, and an extended $\Lambda$CDM model where we include non-standard self-interactions among massive neutrinos, mediated by a heavy scalar or vector boson. Constraints were derived using the Planck 2018 + BICEP/Keck 2018 datasets along with other data. For the inflationary potentials, we consider two different formulations in gravity that are non-minimally coupled to the scalar field of the inflaton: \textit{Metric and Palatini.} We only consider the self-interaction to be present among $\tau$-neutrinos and only at moderate strengths. This is because strong interactions among $\tau$-neutrinos, or any strength self-interaction among electron- and muon-neutrinos, as well as any strength flavor-universal interactions, are strongly disfavoured from particle physics experiments. In terms of cosmological data, we use the latest public CMB datasets from Planck 2018 and BICEP/Keck 2018 collaborations, along with other data from CMB lensing, BAO, RSD, and SNe Ia luminosity distance measurements. We find that there are some situations where predictions from the inflationary models are ruled out at more than 2$\sigma$ by the minimal $\Lambda$CDM$+r$ model, but they are allowed in the self-interacting neutrino scenario.

28 pages, this version matches the published version in JCAP

References in corpus (54)

• The Standard Model Higgs boson as the inflaton
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Higgs inflation: consistency and generalisations
• PolyChord: nested sampling for cosmology
• Status of non-standard neutrino interactions
• Inflation with Non-Minimal Coupling: Metric vs. Palatini Formulations
• Higgs-Palatini Inflation and Unitarity
• Higgs inflation with loop corrections in the Palatini formulation
• Interacting neutrinos in cosmology: exact description and constraints
• Preheating in Palatini Higgs inflation
• Updated constraints on massive neutrino self-interactions from cosmology in light of the $H_0$ tension
• Interacting radiation after Planck and its implications for the Hubble Tension
• Inflation meets neutrinos
• Minimal Higgs inflation with an $R^2$ term in Palatini gravity
• Resurrecting Quadratic Inflation with a non-minimal coupling to gravity
• Coleman-Weinberg linear inflation: metric vs. Palatini formulation
• Boltzmann hierarchy for interacting neutrinos I: formalism
• Strong Supernova 1987A Constraints on Bosons Decaying to Neutrinos
• The Hubble Tension as a Hint of Leptogenesis and Neutrino Mass Generation
• Embedding inflation into the Standard Model - more evidence for classical scale invariance
• Probing Secret Interactions of Astrophysical Neutrinos in the High-Statistics Era
• Equivalence of inflationary models between the metric and Palatini formulation of scalar-tensor theories
• Constraints on secret neutrino interactions after Planck
• Coleman-Weinberg Potential In Good Agreement With WMAP
• Large Neutrino Secret Interactions, Small Impact on Supernovae
• Does Current Data Prefer a Non-minimally Coupled Inflaton?
• Towards Powerful Probes of Neutrino Self-Interactions in Supernovae
• The inflationary gravitational-wave background and measurements of the scalar spectral index
• Implications of Palatini gravity for inflation and beyond
• Constraining $\mathcal{N}=1$ supergravity inflationary framework with non-minimal Kähler operators
• Massive neutrino self-interactions and inflation
• Natural inflation with a nonminimal coupling to gravity
• Solving the Hubble tension without spoiling Big Bang Nucleosynthesis
• Supernova Emission of Secretly Interacting Neutrino Fluid: Theoretical Foundations
• Self-Interacting Neutrinos in Light of Large-Scale Structure Data
• The two-mode puzzle: Confronting self-interacting neutrinos with the full shape of the galaxy power spectrum
• Neutrino Properties with Ground-Based Millimeter-Wavelength Line Intensity Mapping
• Precision CMB constraints on eV-scale bosons coupled to neutrinos
• Monopoles, Strings and Gravitational Waves in Non-minimal Inflation
• Notes on natural inflation
• Global view of neutrino interactions in cosmology: The freestreaming window as seen by Planck
• Probing neutrino interactions and dark radiation with gravitational waves
• Resonant neutrino self-interactions and the $H_0$ tension
• Pseudoscalar sterile neutrino self-interactions in light of Planck, SPT and ACT data
• Natural Inflation with non minimal coupling to gravity in $R^2$ gravity under the Palatini formalism
• Nonminimally-coupled warm Higgs inflation: Metric vs. Palatini Formulations
• Testing scale-invariant inflation against cosmological data
• Non-minimally coupled Natural Inflation: Palatini and Metric formalism with the recent BICEP/Keck
• Neutrino secret self-interactions: a booster shot for the cosmic neutrino background
• Reheating constraints on modified single-field Natural Inflation models
• Axions, WIMPs, proton decay and observable $r$ in $SO(10)$
• Synergy Between Hubble Tension Motivated Self-Interacting Neutrino and KeV-Sterile Neutrino Dark Matter
• Testing the coupling of dark radiations in light of the Hubble tension

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• Phase-space analysis of dark energy models in non-minimally coupled theories of gravity
• Natural Inflation with Exponentially Small Tensor-To-Scalar Ratio
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