Relic neutrino decoupling with flavour oscillations revisited

Abstract

We study the decoupling process of neutrinos in the early universe in the presence of three-flavour oscillations. The evolution of the neutrino spectra is found by solving the corresponding momentum-dependent kinetic equations for the neutrino density matrix, including for the first time the proper collision integrals for both diagonal and off-diagonal elements. This improved calculation modifies the evolution of the off-diagonal elements of the neutrino density matrix and changes the deviation from equilibrium of the frozen neutrino spectra. However, it does not vary the contribution of neutrinos to the cosmological energy density in the form of radiation, usually expressed in terms of the effective number of neutrinos, N_eff. We find a value of N_eff=3.045, in agreement with previous theoretical calculations and consistent with the latest analysis of Planck data. This result does not depend on the ordering of neutrino masses. We also consider the effect of non-standard neutrino-electron interactions (NSI), predicted in many theoretical models where neutrinos acquire mass. For two sets of NSI parameters allowed by present data, we find that N_eff can be reduced down to 3.040 or enhanced up to 3.059.

arXiv comment19 pages, 6 figures

References in corpus (27)

• Planck 2015 results. XIII. Cosmological parameters
• Relic neutrino decoupling including flavour oscillations
• Neutrino oscillations refitted
• Cosmological bounds on neutrino degeneracy improved by flavor oscillations
• Present and Future Bounds on Non-Standard Neutrino Interactions
• Bounds on very low reheating scenarios after Planck
• A precision calculation of the effective number of cosmological neutrinos
• Neutrino Physics from the Cosmic Microwave Background and Large Scale Structure
• Neutrino masses and mixings: Status of known and unknown $3\nu$ parameters
• Non standard neutrino interactions
• Nonequilibrium Corrections to the Spectra of Massless Neutrinos in the Early Universe
• Neutrino decoupling in the early Universe
• Global Analyses of Neutrino Oscillation Experiments
• Limits on the Non-Standard Interactions of Neutrinos from $e^{+}{e}^{-}$ Colliders
• Neutrino energy transport in weak decoupling and big bang nucleosynthesis
• A Guide to Designing Future Ground-based CMB Experiments
• Updated BBN bounds on the cosmological lepton asymmetry for non-zero theta13
• Constraining Nonstandard Neutrino-Electron Interactions
• Relic neutrino asymmetry evolution from first principles
• Non equilibrium spectra of degenerate relic neutrinos
• Nonequilibrium Corrections to the Spectra of Massless Neutrinos in the Early Universe - Addendum
• Effects of non-standard neutrino-electron interactions on relic neutrino decoupling
• Cosmological lepton asymmetry with a nonzero mixing angle θ_{13}
• Finite temperature effects on the neutrino decoupling in the early Universe
• Cosmological Neutrino Background Revisited
• Relic Neutrino Freeze-out: Dependence on Natural Constants
• Active-sterile neutrino oscillations in the early Universe with full collision terms

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