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n-point amplitudes with a single negative-helicity graviton

Sam Alston, David Dunbar Orcid Logo, Warren Perkins Orcid Logo

Physical Review D, Volume: 92, Issue: 6

Swansea University Authors: David Dunbar Orcid Logo, Warren Perkins Orcid Logo

DOI (Published version): 10.1103/PhysRevD.92.065024

Abstract

An expression for the n-point one-loop graviton scattering amplitude with a singlenegative helicity external leg is constructed using an augmented recursion technique. We analyse the soft-limits ofthese amplitudes and demonstrate that they have soft behaviour beyond the conjectured universalbehaviou...

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Published in: Physical Review D
Published: 2015
URI: https://cronfa.swan.ac.uk/Record/cronfa22986
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Abstract: An expression for the n-point one-loop graviton scattering amplitude with a singlenegative helicity external leg is constructed using an augmented recursion technique. We analyse the soft-limits ofthese amplitudes and demonstrate that they have soft behaviour beyond the conjectured universalbehaviour.
Item Description: Accepted PRD 1.10.2015
College: College of Science
Issue: 6