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Non-abelian infrared divergences on the celestial sphere
We consider the infrared factorisation of non-abelian multi-particle scattering amplitudes, and we study the form of the universal colour operator responsible for infrared divergences, when expressed in terms of coordinates on the ‘celestial sphere’ intersecting the future light-cone at asymptotic d...
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| Lenguaje: | eng |
| Publicado: |
2021
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| Acceso en línea: | https://dx.doi.org/10.1007/JHEP05(2021)282 http://cds.cern.ch/record/2764900 |