Gravitational Scattering in the ADD-model Revisited
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
Gravitational scattering in the ADD-model is studied and it is argued that no cut-off is needed for the exchange of virtual Kaluza--Klein modes. By introduction of a small coordinate in the extra dimensions a unique form of the Kaluza--Klein-summed propagator is found for an odd number of extra dimensions. The matrix element corresponding to this propagator can also (as opposed to the cut-offed version) be Fourier transformed to position space, giving back the extra-dimensional version of Newton's law. For an even number of extra dimensions the propagator is found by requiring that Newton's law should be recovered.
Cite
@article{arxiv.hep-ph/0602138,
title = {Gravitational Scattering in the ADD-model Revisited},
author = {Malin Sjodahl},
journal= {arXiv preprint arXiv:hep-ph/0602138},
year = {2008}
}