Graviton Absorption by Non-BPS Branes
High Energy Physics - Theory
2009-11-07 v1
Abstract
We consider the behaviour of neutral non-BPS branes probed by scalars and gravitons. We show that the naked singularity of the non-BPS branes is a {\it repulson} absorbing no incoming radiation. The naked singularity is surrounded by an infinite potential well breaking the unitarity of the scattering S-matrix. We compute the absorption cross section which is infrared divergent. In particular this confirms that gravity does not decouple for the non-BPS branes.
Cite
@article{arxiv.hep-th/0101077,
title = {Graviton Absorption by Non-BPS Branes},
author = {Ph. Brax},
journal= {arXiv preprint arXiv:hep-th/0101077},
year = {2009}
}
Comments
13 pages, Latex