Inelastic black hole scattering from charged scalar amplitudes

Luna, A., Nicholson, I., O’Connell, D. and White, C. D. (2018) Inelastic black hole scattering from charged scalar amplitudes. Journal of High Energy Physics, 2018(3), 44. (doi: 10.1007/JHEP03(2018)044)

Abstract

We explain how the lowest-order classical gravitational radiation produced during the inelastic scattering of two Schwarzschild black holes in General Relativity can be obtained from a tree scattering amplitude in gauge theory coupled to scalar fields. The gauge calculation is related to gravity through the double copy. We remove unwanted scalar forces which can occur in the double copy by introducing a massless scalar in the gauge theory, which is treated as a ghost in the link to gravity. We hope these methods are a step towards a direct application of the double copy at higher orders in classical perturbation theory, with the potential to greatly streamline gravity calculations for phenomenological applications.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Luna Godoy, Mr Andres
• Authors: Luna, A., Nicholson, I., O’Connell, D., and White, C. D.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Journal of High Energy Physics
• Publisher: Springer
• ISSN: 1126-6708
• ISSN (Online): 1029-8479
• Published Online: 08 March 2018
• Copyright Holders: Copyright © 2018 The Authors
• First Published: First published in Journal of High Energy Physics 2018(3): 44
• Publisher Policy: Reproduced under a Creative Commons License