Couplings of gravity to antisymmetric gauge fields

Details Couplings of gravity to antisymmetric gauge fields Couplings of gravity to antisymmetric gauge fields

2000-03-20

arxiv.org/abs/hep-th/0003170v1

Phys.Lett. B481 (2000) 89-96

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, no figures, Latex2.09

Scientific paper

10.1016/S0370-2693(00)00422-6

We classify all the first-order vertices of gravity consistently coupled to a system of 2-form gauge fields by computing the local BRST cohomology H(s|d) in ghost number 0 and form degree n. The consistent deformations are at most linear in the undifferentiated two-form, confirming the previous results of [1] that geometrical theories constructed from a nonsymmetric gravity theory are physically inconsistent or trivial. No assumption is made here on the degree of homogeneity in the derivatives nor on the form of the gravity action.

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