Regular Article - Theoretical Physics
Gravitational scattering in the ADD model at high and low energies
Department of Theoretical Physics, Lund University, Sölvegatan 14A, 22362, Lund, Sweden
2 School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
* e-mail: firstname.lastname@example.org
Published online: 7 November 2007
Gravitational scattering in the ADD model is considered at both sub- and transplanckian energies using a common formalism. By keeping a physical cut-off in the KK tower associated with virtual KK exchange, such as the cut-off implied by a finite brane width, troublesome divergences are removed from the calculations in both energy ranges. The scattering behavior depends on three different energy scales: the fundamental Planck mass, the collision energy and the inverse brane width. The result for energies low compared to the effective cut-off (inverse brane width) is a contact-like interaction. At high energies the gravitational scattering associated with the extra dimensional version of Newton’s law is recovered.
© Springer-Verlag / Società Italiana di Fisica, 2008