Constraining dynamical neutrino mass generation with cosmological data

Abstract

We study models in which neutrino masses are generated dynamically at cosmologically late times. Our study is purely phenomenological and parameterized in terms of three effective parameters characterizing the redshift of mass generation, the width of the transition region, and the present day neutrino mass. We also study the possibility that neutrinos become strongly self-interacting at the time where the mass is generated. We find that in a number of cases, models with large present day neutrino masses are allowed by current CMB, BAO and supernova data. The increase in the allowed mass range makes it possible that a non-zero neutrino mass could be measured in direct detection experiments such as KATRIN. Intriguingly we also find that there are allowed models in which neutrinos become strongly self-interacting around the epoch of recombination.

18 pages, 13 figures, minor changes, matches published version

References in corpus (18)

• Planck 2015 results. XIII. Cosmological parameters
• Efficient Computation of CMB anisotropies in closed FRW models
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• A 2.4% Determination of the Local Value of the Hubble Constant
• The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
• Supernova Constraints and Systematic Uncertainties from the First 3 Years of the Supernova Legacy Survey
• Final Results from phase II of the Mainz Neutrino Mass Search in Tritium $\beta$ Decay
• Updated fit to three neutrino mixing: exploring the accelerator-reactor complementarity
• Measurement of the flux and zenith-angle distribution of upward through-going muons by Super-Kamiokande
• Dark Energy from Mass Varying Neutrinos
• Neutrino Mass Models
• Cosmological parameters from large scale structure - geometric versus shape information
• A tale of two modes: Neutrino free-streaming in the early universe
• Structure formation with strongly interacting neutrinos - implications for the cosmological neutrino mass bound
• Small neutrino masses from gravitational $\theta$-term
• Testing standard and non-standard neutrino physics with cosmological data

Cited by in corpus (13)

• The Price of Shifting the Hubble Constant
• Time-varying neutrino mass from a supercooled phase transition: current cosmological constraints and impact on the ${\Omega }_m$-${\sigma }_8$ plane
• Probing secret interactions of eV-scale sterile neutrinos with the diffuse supernova neutrino background
• Reconstruction of the neutrino mass as a function of redshift
• Exploring neutrino mass and mass hierarchy in interacting dark energy models
• The $10^{-3}$ eV Frontier in Neutrinoless Double Beta Decay
• Confronting interacting dark radiation scenarios with cosmological data
• Probing neutrino interactions and dark radiation with gravitational waves
• The diffuse supernova neutrino background as a probe of late-time neutrino mass generation
• Time- and Space-Varying Neutrino Mass Matrix from Soft Topological Defects
• Constraining the Effective Mass of Majorana Neutrino with Sterile Neutrino Mass for Inverted Ordering Spectrum
• Prospects for searching for sterile neutrinos with gravitational wave and $\gamma$-ray burst joint observations
• Phasing out of Darkness: From Sterile Neutrino Dark Matter to Neutrino Masses via Time-Dependent Mixing