Diff-invariant Kinetic Terms in Arbitrary Dimensions
arXiv:hep-th/0204092 · doi:10.1103/PhysRevD.65.125020
Abstract
We study the physical content of quadratic diff-invariant Lagrangians in arbitrary dimensions by using covariant symplectic techniques. This paper extends previous results in dimension four. We discuss the difference between the even and odd dimensional cases.
8 pages, REVTEX. To appear in Phys. Rev. D