One Loop Integrands for Scattering Amplitudes from the Riemann Sphere
1 hour 5 mins,
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About this item
| Description: |
Monteiro, R (CERN - European Organisation for Nuclear Research)
Thursday 30th June 2016 - 10:00 to 11:00 |
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| Created: | 2016-07-06 11:55 |
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| Collection: | Gravity, Twistors and Amplitudes |
| Publisher: | Isaac Newton Institute |
| Copyright: | Monteiro, R |
| Language: | eng (English) |
| Distribution: |
World
(downloadable)
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| Explicit content: | No |
| Aspect Ratio: | 16:9 |
| Screencast: | No |
| Bumper: | UCS Default |
| Trailer: | UCS Default |
| Abstract: | Worldsheet formulations of quantum field theories have had wide-ranging impact on the study of scattering amplitudes. However, the mathematical framework becomes very challenging on the higher-genus worldsheets required to describe loop effects. I will describe how, in such worldsheet models based on the scattering equations, formulae on genus one surfaces can be transformed to ones on the Riemann sphere. I will present formulae for the one-loop integrands of scattering amplitudes in gravity and gauge theory, with or without supersymmetry.
Related Links◾http://arxiv.org/abs/1507.00321 ◾http://arxiv.org/abs/1511.06315 |
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