Two-loop scattering amplitudes from ambitwistor strings: from genus two to the nodal Riemann sphere
Abstract We derive from ambitwistor strings new formulae for two-loop scattering amplitudes in supergravity and super-Yang-Mills theory, with any number of particles. We start by constructing a formula for the type II ambitwistor string amplitudes on a genus-two Riemann surface, and then study the l...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2018-11-01
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Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1007/JHEP11(2018)008 |