Constraints on secret neutrino interactions after Planck

Abstract

(Abridged) Neutrino interactions beyond the standard model may affect the cosmological evolution and can be constrained through observations. We consider the possibility that neutrinos possess secret scalar or pseudoscalar interactions mediated by the Nambu-Goldstone boson of a still unknown spontaneously broken global $U(1)$ symmetry, as in, e.g. , Majoron models. In such scenarios, neutrinos still decouple at $T\simeq 1$ MeV, but become tightly coupled again ('recouple') at later stages of the cosmological evolution. We use available observations of CMB anisotropies, including Planck 2013 and the joint BICEP2/Planck 2015 data, to derive constraints on the quantity ${\gamma }_{\nu \nu }^4$, parameterizing the neutrino collision rate due to (pseudo)scalar interactions. We consider both a minimal extension of the standard $\Lambda$CDM model, and scenarios with extra relativistic species or non-vanishing tensors. We find a typical constraint ${\gamma }_{\nu \nu }^4<0.9\times 10^{-27}$ (95% C.L.), implying an upper limit on the redshift $z_{rec}$ of neutrino recoupling $<8500$. In the framework of Majoron models, the upper limit on ${\gamma }_{\nu \nu }$ roughly translates on a constraint $g<8.2\times 10^{-7}$ on the Majoron-neutrino coupling constant $g$. In general, the data show a weak ($\sim 1\sigma$) but intriguing preference for non-zero values of ${\gamma }_{\nu \nu }^4$, with best fits in the range ${\gamma }_{\nu \nu }^4=(0.15-0.35)\times 10^{-27}$, depending on the particular dataset. This is more evident when either observations from ACT and SPT are included, or the possibility of non-vanishing tensor modes is considered. In particular, for the minimal model $\Lambda$CDM +${\gamma }_{\nu \nu }$ and including the Planck 2013, ACT and SPT data, we report ${\gamma }_{\nu \nu }^4=(0.45_{-0.38}^{+0.15})\times 10^{-27}$ ($200<z_{rec}<5700$) at 68% confidence level.

arXiv comment19 pages, 7 figures, 3 tables. Replaced to match version accepted for pubblication in JCAP

References in corpus (54)

• Planck 2013 results. XVI. Cosmological parameters
• Efficient Computation of CMB anisotropies in closed FRW models
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges
• Cosmological Perturbation Theory in the Synchronous vs. Conformal Newtonian Gauge
• Planck 2013 results. I. Overview of products and scientific results
• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• Massive neutrinos and cosmology
• A Joint Analysis of BICEP2/Keck Array and Planck Data
• Planck 2013 results. XV. CMB power spectra and likelihood
• Efficient sampling of fast and slow cosmological parameters
• Sterile Neutrino Oscillations: The Global Picture
• The Atacama Cosmology Telescope: Temperature and Gravitational Lensing Power Spectrum Measurements from Three Seasons of Data
• A measurement of secondary cosmic microwave background anisotropies with two years of South Pole Telescope observations
• Neutrino mass from Cosmology
• BICEP2 II: Experiment and Three-Year Data Set
• Limits on Neutrino-Neutrino Scattering in the Early Universe
• Neutrinoless Universe
• Updated constraints on non-standard neutrino interactions from Planck
• Bounds on the Coupling of the Majoron to Light Neutrinos from Supernova Cooling
• Supernova Bounds on Majoron-emitting decays of light neutrinos
• Structure formation with strongly interacting neutrinos - implications for the cosmological neutrino mass bound
• Cosmological Signatures of Interacting Neutrinos
• Cosmology with self-interacting sterile neutrinos and dark matter - A pseudoscalar model
• Neutrinos help reconcile Planck measurements with both Early and Local Universe
• Relic Neutrinos, thermal axions and cosmology in early 2014
• Limits on Majoron-emitting double-beta decays of Xe-136 in the KamLAND-Zen experiment
• Sterile Neutrinos: Cosmology vs Short-BaseLine Experiments
• The strongest bounds on active-sterile neutrino mixing after Planck data
• Indication for Primordial Anisotropies in the Neutrino Background from WMAP and SDSS
• Sterile Neutrinos in Light of Recent Cosmological and Oscillation Data: a Multi-Flavor Scheme Approach
• Self-interacting Warm Dark Matter
• No new cosmological concordance with massive sterile neutrinos
• Boltzmann hierarchy for interacting neutrinos I: formalism
• Sterile neutrinos help reconcile the observational results of primordial gravitational waves from Planck and BICEP2
• Cosmological lepton asymmetry with a nonzero mixing angle θ_{13}
• Testing 3+1 and 3+2 neutrino mass models with cosmology and short baseline experiments
• Light sterile neutrinos after BICEP-2
• Constraints on neutrino and dark radiation interactions using cosmological observations
• Cosmological constraints on neutrinos after BICEP2
• Generalized Bounds on Majoron-neutrino couplings
• Unveiling secret interactions among sterile neutrinos with big-bang nucleosynthesis
• Dark Radiation and interacting scenarios
• Do observations prove that cosmological neutrinos are thermally distributed?
• Search for Majoron-emitting modes of double-beta decay of ${}^{136}$Xe with EXO-200
• Decay of heavy Majorana neutrinos using the full Boltzmann equation including its implications for leptogenesis
• Dark Radiation candidates after Planck
• Neutrino constraints: what large-scale structure and CMB data are telling us?
• Neutrino and Dark Radiation properties in light of latest CMB observations
• Dark Radiation in extended cosmological scenarios
• Robustness of cosmic neutrino background detection in the cosmic microwave background
• Statistical tests of sterile neutrinos using cosmology and short-baseline data
• Neutrino Anisotropies after Planck

Cited by in corpus (48)

• The Neutrino Puzzle: Anomalies, Interactions, and Cosmological Tensions
• Updated Global 3+1 Analysis of Short-BaseLine Neutrino Oscillations
• Constraining the Self-Interacting Neutrino Interpretation of the Hubble Tension
• A CMB Search for the Neutrino Mass Mechanism and its Relation to the $H_0$ Tension
• Exploring Cosmic Origins with CORE: Cosmological Parameters
• Observational Constraints on Secret Neutrino Interactions from Big Bang Nucleosynthesis
• Pseudoscalar - sterile neutrino interactions: reconciling the cosmos with neutrino oscillations
• Interacting radiation after Planck and its implications for the Hubble Tension
• Neutrino Self-Interactions: A White Paper
• Cosmological constraints on neutrino self-interactions with a light mediator
• The Hubble tension and a renormalizable model of gauged neutrino self-interactions
• Snowmass White Paper: Beyond the Standard Model effects on Neutrino Flavor
• Bounds on secret neutrino interactions from high-energy astrophysical neutrinos
• Dark Neutrino interactions phase out the Hubble tension
• Neutrino-Assisted Early Dark Energy: Theory and Cosmology
• Invisible neutrino decay in precision cosmology
• Testing Moduli and Flavon Dynamics with Neutrino Oscillations
• Probing non-standard neutrino interactions with a light boson from next galactic and diffuse supernova neutrinos
• Intimate Relationship Between Sterile Neutrino Dark Matter and $\Delta N_{\mathrm{eff}}$
• Bounds on neutrino-scalar nonstandard interactions from big bang nucleosynthesis
• Probing secret interactions of eV-scale sterile neutrinos with the diffuse supernova neutrino background
• Massive neutrino self-interactions and inflation
• Solving the Hubble tension without spoiling Big Bang Nucleosynthesis
• Updating non-standard neutrinos properties with Planck-CMB data and full-shape analysis of BOSS and eBOSS galaxies
• Confronting interacting dark radiation scenarios with cosmological data
• Precision CMB constraints on eV-scale bosons coupled to neutrinos
• Neutrino meets ultralight dark matter: $0\mathbf{\nu \beta \beta }$ decay and cosmology
• Massive neutrino self-interactions with a light mediator in cosmology
• Global view of neutrino interactions in cosmology: The freestreaming window as seen by Planck
• Probing neutrino interactions and dark radiation with gravitational waves
• Neutrino bound states and bound systems
• Tritium beta decay with additional emission of new light bosons
• Detecting a Secondary Cosmic Neutrino Background from Majoron Decays in Neutrino Capture Experiments
• Resonant neutrino self-interactions and the $H_0$ tension
• Loop-induced Neutrino Non-Standard Interactions
• Neutrino masses from large-scale structures: future sensitivity and theory dependence
• Dark matter in the Scotogenic model with spontaneous lepton number violation
• Light sterile neutrinos from a late phase transition
• Phase Transitions and Baryogenesis From Decays
• Dark matter and observable Lepton Flavour Violation
• X-ray morphology of cluster-mass haloes in self-interacting dark matter
• Neutrino Masses from Low Scale Partial Compositeness
• Primordial neutrinos and new physics: novel approach to solving neutrino Boltzmann equation
• First constraints on non-minimally coupled Natural and Coleman-Weinberg inflation and massive neutrino self-interactions with Planck+BICEP/Keck
• Abundance and properties of dark radiation from the cosmic microwave background
• How new physics affects primordial neutrinos decoupling: Direct Simulation Monte Carlo approach
• Dark energy from the motions of neutrinos
• Resonant neutrino self-interactions: Insights from the full shape galaxy power spectrum