C. Csaki et al., Graviton propagators, brane bending and bending of light in theories with quasi-localized gravity, PHYS LETT B, 481(1), 2000, pp. 107-113
We derive the graviton propagator on the brane for theories with quasi-loca
lized gravity. In these models the ordinary 4D graviton is replaced by a re
sonance in the spectrum of massive Kaluza-Klein modes, which can decay into
the extra dimension. We find that the effects of the extra polarization in
the massive graviton propagator is exactly cancelled by the bending of the
brane due to the matter sources, up to small corrections proportional to t
he width of the resonance. Thus at intermediate scales the classic predicti
ons of Einstein's gravity are reproduced in these models to arbitrary preci
sion. (C) 2000 Elsevier Science B.V. All rights reserved.