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  On Non-Perturbative Unitarity in Gravitational Scattering

Sachs, I., & Tran, T. (2019). On Non-Perturbative Unitarity in Gravitational Scattering. The European Physical Journal C, 79(11): 914. doi:10.1140/epjc/s10052-019-7403-2.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-23DB-F Version Permalink: http://hdl.handle.net/21.11116/0000-0005-51C3-3
Genre: Journal Article

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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: 2019-02-222019
 Publication Status: Published in print
 Pages: 5 pages, 1 figure
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1902.08409
URI: http://arxiv.org/abs/1902.08409
DOI: 10.1140/epjc/s10052-019-7403-2
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Title: The European Physical Journal C
Source Genre: Journal
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Pages: - Volume / Issue: 79 (11) Sequence Number: 914 Start / End Page: - Identifier: -