Measurability of the non-minimal coupling
arXiv:hep-th/0003008 · doi:10.1016/S0370-2693(00)00274-4
Abstract
The "measurability" of the non-minimal coupling is discussed in the context of the effective field theory of gravity. Although there is no obvious motive for excluding a non-minimal scalar coupling from the theory, we conclude that for reasonable values of the coupling constant it makes only a very small correction.
8 pages, latex, 2 eps figures, to be published in Phys. Lett. B