Planckian Energy Scattering and Surface Terms in the Gravitational Action

Details Planckian Energy Scattering and Surface Terms in the Gravitational Action Planckian Energy Scattering and Surface Terms in the Gravitational Action

1993-09-07

arxiv.org/abs/hep-th/9309037v2

Physics

High Energy Physics

High Energy Physics - Theory

preprint CERN-TH.6904/93/rev (Latex file, 46 pages, 2 figures not included)

Scientific paper

10.1016/0550-3213(94)90361-1

This is a revised version of our previous paper by the same name and preprint number. It contains various changes, two figures and new results in sect.5. We propose a new approach to four-dimensional Planckian-energy scattering in which the phase of the ${\cal S}$-matrix is written---to leading order in $\hbar$ and to all orders in $R/b =Gs/J$---in terms of the surface term of the gravity action and of a boundary term for the colliding quanta. The proposal is checked at the leading order in $R/b$ and also against some known examples of scattering in strong gravitational fields.

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