S. A. Alavi, A. Abbasnezhad
The interaction of neutrinos with gravitational fields in the weak field
regime at 1-loop to leading order has been studied in Ref[2]. They deduce some
theoretical differences between the Majorana and Dirac neutrinos. Then they
prove that in spite of the theoretical differences between the two cases, as
far as experiments are considered, they would be virtually indistinguishable.
We study the interaction of neutrinos with weak gravitational fields to the
second order (at 2-loops). After heavy calculations we show that there appear
new neutrino gravitational form factors which were absent in the first order
calculations, so from theoretical point of view there are more differences
between the two kind of neutrinos than the first order but surprisingly we show
that like the first order they are indistinguishable experimentally.
View original:
http://arxiv.org/abs/1201.4741
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