Lorentz invariance violation in the neutrino sector: a joint analysis from big bang nucleosynthesis and the cosmic microwave background

Abstract

We investigate constraints on Lorentz invariance violation in the neutrino sector from a joint analysis of big bang nucleosynthesis and the cosmic microwave background. The effect of Lorentz invariance violation during the epoch of big bang nucleosynthesis changes the predicted helium-4 abundance, which influences the power spectrum of the cosmic microwave background at the recombination epoch. In combination with the latest measurement of the primordial helium-4 abundance, the Planck 2015 data of the cosmic microwave background anisotropies give a strong constraint on the deformation parameter since adding the primordial helium measurement breaks the degeneracy between the deformation parameter and the physical dark matter density.

10 pages, 8 figure

References in corpus (6)

• Phenomenology with Massive Neutrinos
• Cosmology seeking friendship with sterile neutrinos
• Neutrino mass from Cosmology
• Observational bounds on the cosmic radiation density
• High energy neutrino oscillation at the presence of the Lorentz Invariance Violation
• Cosmological constraints on Lorentz invariance violation in the neutrino sector

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