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Neutrino asymmetry in presence of gravitational interaction

Banibrata Mukhopadhyay
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Abstract

Propagation of fermions in curved space-time generates a gravitational interaction due to the coupling between spin of the fermion and space-time curvature. This gravitational interaction, which is an axial-vector appears as the CPT violating term in the Lagrangian, can generate the neutrino asymmetry in Universe. If the back-ground metric is spherically asymmetric, say, of rotating black hole, the axisymmetric space-time of an expanding Universe, this interaction as well as the neutrino asymmetry is non-zero.

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BibTeXRIS

Banibrata Mukhopadhyay. 2004-02-07. Neutrino asymmetry in presence of gravitational interaction. https://doi.org/10.1142/9789812704030_0078

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