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arXiv · 2304.00475

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

Wei Lin·Xun Xue
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Abstract

The possibility of distinguishing Dirac and Majorana fermions by cosmic torsion in the spatial-flat FRW spacetime is discussed. The scattering amplitudes of two types of fermions deviate from each other by the vector part of torsion in non-minimal coupling case. The scattering of massive fermions by cosmic torsion leads to a shift of final state energy distribution. The difference between shift values of two types of fermions can be used to distinguish fermion types of neutrinos.

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Wei Lin, Xun Xue. 2023-04-02. Dirac and Majorana neutrino scattering by cosmic torsion in spatial-flat FRW spacetime background. https://arxiv.org/abs/2304.00475

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