Post-Minkowskian scattering angle in Einstein gravity

Abstract Using the implicit function theorem we demonstrate that solutions to the classical part of the relativistic Lippmann-Schwinger equation are in one-to-one correspondence with those of the energy equation of a relativistic two-body system. A corollary is that the scattering angle can be compu...

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Main Authors: N.E.J. Bjerrum-Bohr, Andrea Cristofoli, Poul H. Damgaard
Format: Article
Language:English
Published: SpringerOpen 2020-08-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP08(2020)038
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author N.E.J. Bjerrum-Bohr
Andrea Cristofoli
Poul H. Damgaard
author_facet N.E.J. Bjerrum-Bohr
Andrea Cristofoli
Poul H. Damgaard
author_sort N.E.J. Bjerrum-Bohr
collection DOAJ
description Abstract Using the implicit function theorem we demonstrate that solutions to the classical part of the relativistic Lippmann-Schwinger equation are in one-to-one correspondence with those of the energy equation of a relativistic two-body system. A corollary is that the scattering angle can be computed from the amplitude itself, without having to introduce a potential. All results are universal and provide for the case of general relativity a very simple formula for the scattering angle in terms of the classical part of the amplitude, to any order in the post-Minkowskian expansion.
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spelling doaj.art-acb9915987e54e5db054e4f49a9493ca2022-12-21T18:13:12ZengSpringerOpenJournal of High Energy Physics1029-84792020-08-012020812110.1007/JHEP08(2020)038Post-Minkowskian scattering angle in Einstein gravityN.E.J. Bjerrum-Bohr0Andrea Cristofoli1Poul H. Damgaard2Niels Bohr International Academy and Discovery Center, The Niels Bohr Institute, University of CopenhagenNiels Bohr International Academy and Discovery Center, The Niels Bohr Institute, University of CopenhagenNiels Bohr International Academy and Discovery Center, The Niels Bohr Institute, University of CopenhagenAbstract Using the implicit function theorem we demonstrate that solutions to the classical part of the relativistic Lippmann-Schwinger equation are in one-to-one correspondence with those of the energy equation of a relativistic two-body system. A corollary is that the scattering angle can be computed from the amplitude itself, without having to introduce a potential. All results are universal and provide for the case of general relativity a very simple formula for the scattering angle in terms of the classical part of the amplitude, to any order in the post-Minkowskian expansion.http://link.springer.com/article/10.1007/JHEP08(2020)038Classical Theories of GravityScattering Amplitudes
spellingShingle N.E.J. Bjerrum-Bohr
Andrea Cristofoli
Poul H. Damgaard
Post-Minkowskian scattering angle in Einstein gravity
Journal of High Energy Physics
Classical Theories of Gravity
Scattering Amplitudes
title Post-Minkowskian scattering angle in Einstein gravity
title_full Post-Minkowskian scattering angle in Einstein gravity
title_fullStr Post-Minkowskian scattering angle in Einstein gravity
title_full_unstemmed Post-Minkowskian scattering angle in Einstein gravity
title_short Post-Minkowskian scattering angle in Einstein gravity
title_sort post minkowskian scattering angle in einstein gravity
topic Classical Theories of Gravity
Scattering Amplitudes
url http://link.springer.com/article/10.1007/JHEP08(2020)038
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