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Couplings of gravity to antisymmetric gauge fields | | Xavier Bekaert
; Bernard Knaepen
; Christiane Schomblond
; | | Date: |
20 Mar 2000 | | Journal: | Phys.Lett. B481 (2000) 89-96 | | Subject: | hep-th gr-qc | | Abstract: | 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. | | Source: | arXiv, hep-th/0003170 | | Services: | Forum | Review | PDF | Favorites | |
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