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arXiv · gr-qc/0605153

Can Gravity Distinguish Between Dirac and Majorana Neutrinos?

Dinesh Singh·Nader Mobed·Giorgio Papini
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Abstract

We show that spin-gravity interaction can distinguish between Dirac and Majorana neutrino wave packets propagating in a Lense-Thirring background. Using time-independent perturbation theory and gravitational phase to generate a perturbation Hamiltonian with spin-gravity coupling, we show that the associated matrix element for the Majorana neutrino differs significantly from its Dirac counterpart. This difference can be demonstrated through significant gravitational corrections to the neutrino oscillation length for a two-flavour system, as shown explicitly for SN1987A.

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Dinesh Singh, Nader Mobed, Giorgio Papini. 2006-07-05. Can Gravity Distinguish Between Dirac and Majorana Neutrinos?. https://doi.org/10.1103/physrevlett.97.041101

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