Solving the Hubble tension without spoiling Big Bang Nucleosynthesis

Abstract

The Hubble parameter inferred from cosmic microwave background observations is consistently lower than that from local measurements, which could hint towards new physics. Solutions to the Hubble tension typically require a sizable amount of extra radiation $\Delta N_{\mathrm{eff}}^{}$ during recombination. However, the amount of $\Delta N_{\mathrm{eff}}^{}$ in the early Universe is unavoidably constrained by Big Bang Nucleosynthesis (BBN), which causes problems for such solutions. We present a possibility to evade this problem by introducing neutrino self-interactions via a simple Majoron-like coupling. The scalar is slightly heavier than $1\mathrm{MeV}$ and allowed to be fully thermalized throughout the BBN era. The rise of neutrino temperature due to the entropy transfer via $\varphi \to \nu \overline{\nu }$ reactions compensates the effect of a large $\Delta N_{\mathrm{eff}}^{}$ on BBN. Values of $\Delta N_{\mathrm{eff}}^{}$ as large as $0.7$ are in this case compatible with BBN. We perform a fit to the parameter space of the model.

arXiv comment9 pages, 4 figures

References in corpus (66)

• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
• Primordial Nucleosynthesis in the Precision Cosmology Era
• One percent determination of the primordial deuterium abundance
• Cosmology Intertwined II: The Hubble Constant Tension
• New physics in light of the $H_0$ tension: an alternative view
• The effects of He I 10830 on helium abundance determinations
• Precision big bang nucleosynthesis with improved Helium-4 predictions
• The Neutrino Puzzle: Anomalies, Interactions, and Cosmological Tensions
• Nonequilibrium Corrections to the Spectra of Massless Neutrinos in the Early Universe
• Neutrino decoupling in the early Universe
• Constraining the Self-Interacting Neutrino Interpretation of the Hubble Tension
• The BAO+BBN take on the Hubble tension
• Coherent Propagation of PeV Neutrinos and the Dip in the Neutrino Spectrum at IceCube
• A CMB Search for the Neutrino Mass Mechanism and its Relation to the $H_0$ Tension
• Cosmic neutrino cascades from secret neutrino interactions
• Limits on Neutrino-Neutrino Scattering in the Early Universe
• Updated constraints on non-standard neutrino interactions from Planck
• Neutrino Non-Standard Interactions: A Status Report
• Bounds on the Coupling of the Majoron to Light Neutrinos from Supernova Cooling
• AlterBBN: A program for calculating the BBN abundances of the elements in alternative cosmologies
• Probing neutrino coupling to a light scalar with coherent neutrino scattering
• Neutrino energy transport in weak decoupling and big bang nucleosynthesis
• A tale of two modes: Neutrino free-streaming in the early universe
• Constraining invisible neutrino decays with the cosmic microwave background
• Probing BSM Neutrino Physics with Flavor and Spectral Distortions: Prospects for Future High-Energy Neutrino Telescopes
• Supernova Bounds on Majoron-emitting decays of light neutrinos
• Interacting neutrinos in cosmology: exact description and constraints
• Observational Constraints on Secret Neutrino Interactions from Big Bang Nucleosynthesis
• Structure formation with strongly interacting neutrinos - implications for the cosmological neutrino mass bound
• Cosmological Signatures of Interacting Neutrinos
• IceCube PeV-EeV Neutrinos and Secret Interactions of Neutrinos
• New reaction rates for improved primordial D/H calculation and the cosmic evolution of deuterium
• Updated constraints on massive neutrino self-interactions from cosmology in light of the $H_0$ tension
• Comparing early dark energy and extra radiation solutions to the Hubble tension with BBN
• Majoron Dark Matter and Constraints on the Majoron-Neutrino Coupling
• Comment on "Is Dark Matter with Long-Range Interactions a Solution to All Small-Scale Problems of ΛCDM Cosmology?"
• Cosmological constraints on neutrino self-interactions with a light mediator
• Revisiting Neutrino Self-Interaction Constraints from $Z$ and $\tau$ decays
• Boltzmann hierarchy for interacting neutrinos I: formalism
• The Hubble tension and a renormalizable model of gauged neutrino self-interactions
• Searching for MeV-Scale Gauge Bosons with IceCube
• Supernova Constraints on Massive (Pseudo)Scalar Coupling to Neutrinos
• CνB absorption line in the neutrino spectrum at IceCube
• Neutrino Self-Interactions and Double Beta Decay
• Bounds on secret neutrino interactions from high-energy astrophysical neutrinos
• Are cosmological neutrinos free-streaming?
• Self-interacting neutrinos: solution to Hubble tension versus experimental constraints
• Constraints on secret neutrino interactions after Planck
• Effect of Neutrino Heating on Primordial Nucleosynthesis
• Cosmic microwave background constraints on secret interactions among sterile neutrinos
• Sterile neutrino self-interactions: $H_0$ tension and short-baseline anomalies
• Core-collapse supernovae stymie secret neutrino interactions
• Intimate Relationship Between Sterile Neutrino Dark Matter and $\Delta N_{\mathrm{eff}}$
• Neutrino Echoes from Multimessenger Transient Sources
• Bounds on neutrino-scalar nonstandard interactions from big bang nucleosynthesis
• Neutrinoless double-beta decay with massive scalar emission
• Astrophysical constraints on non-standard coherent neutrino-nucleus scattering
• Resolving Hubble Tension by Self-Interacting Neutrinos with Dirac Seesaw
• Comment on astrophysical consequences of a neutrinophilic 2HDM
• Neutrino Masses and Hubble Tension via a Majoron in MFV
• Light gravitino dark matter: LHC searches and Hubble tension
• Tritium beta decay with additional emission of new light bosons
• Incomplete neutrino decoupling effect on big bang nucleosynthesis
• Consequences of neutrino self interactions for weak decoupling and big bang nucleosynthesis
• Self-interacting neutrinos, the Hubble parameter tension, and the Cosmic Microwave Background

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• Simulating neutrino echoes induced by secret neutrino interactions
• Reconciling Cosmological Tensions with Inelastic Dark Matter and Dark Radiation in a $\mathbf{U}(1{)}_{\mathbf{D}}$ Framework
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