Dirac and Majorana neutrino scattering by cosmic torsion in spatial-flat FRW spacetime background

doi:10.3969/j.issn.1000-5641.2024.03.001

Abstract

Abstract:

The possibility of detecting cosmic torsion originated from large scale Lorentz violation of cosmology at cosmic scale by the shift of energy distribution for massive cosmic neutrinos in spatial-flat FRW (Friedmann-Robertson-Walker) spacetime background is discussed. Massive cosmic neutrino scattering owing to cosmic torsion leads to a shift in the peak position of their final state energy distribution at the order of $m^2/E^2$. Moreover, the Dirac and Majorana neutrino shift values differ by the vector part of the torsion in the non-minimal vector torsion coupling case.

Key words: cosmic torsion detection, neutrino, expanding universe

CLC Number:

O412.3

Wei LIN, Xun XUE. Dirac and Majorana neutrino scattering by cosmic torsion in spatial-flat FRW spacetime background[J]. Journal of East China Normal University(Natural Science), 2024, 2024(3): 1-11.

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