A new short range gravitational force in the leptonic world?

We use Grishchuk's approach to introduce Gravitation via a rank-two symmetric tensor field in a flat space-time. We then examine the consequences of a non-identical coupling of gravity with electrons and neutrinos. We show that a local counterpart of the gravitational interaction must occur, mediated by massive spin-two tensor bosons. A universal Higgs mechanism thus determine the mass of these bosons