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  On Non-Perturbative Unitarity in Gravitational Scattering

Sachs, I., & Tran, T. (in preparation). On Non-Perturbative Unitarity in Gravitational Scattering.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-23DB-F Version Permalink: https://hdl.handle.net/21.11116/0000-0003-23E4-4
Genre: Paper

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1902.08409.pdf (Preprint), 371KB
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 Creators:
Sachs , Ivo, Author
Tran, Tung1, Author           
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th,General Relativity and Quantum Cosmology, gr-qc
 Abstract: We argue that the tree-level graviton-scalar scattering in the Regge limit is
unitarized by non-perturbative effects within General Relativity. At Planckian
energy the back reaction of the incoming graviton on the background geometry
produces a non-perturbative plane wave which, in turn, softens the UV-behavior.
Our amplitude then interpolates between the perturbative graviton-scalar
scattering at low energy and scattering on a classical plane wave in the Regge
limit.

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 Dates: 2019-02-22
 Publication Status: Not specified
 Pages: 5 pages, 1 figure
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1902.08409
URI: http://arxiv.org/abs/1902.08409
 Degree: -

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