Eikonal Quantum Gravity and Planckian Scattering

Details Eikonal Quantum Gravity and Planckian Scattering Eikonal Quantum Gravity and Planckian Scattering

1992-03-30

arxiv.org/abs/hep-th/9203082v1

Nucl.Phys.B388:570-592,1992

Physics

High Energy Physics

High Energy Physics - Theory

26 pages

Scientific paper

10.1016/0550-3213(92)90627-N

Various approaches to high energy forward scattering in quantum gravity are compared using the eikonal approximation. The massless limit of the eikonal is shown to be equivalent to other approximations for the same process, specifically the semiclassical calculation due to G. 't Hooft and the topological field theory due to H. and E. Verlinde. This comparison clarifies these previous results, as it is seen that the amplitude arises purely from a linearised gravitational interaction. The interpretation of poles in the scattering amplitude is also clarified.

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