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On soft singularities at three loops and beyond
We report on further progress in understanding soft singularities of massless gauge theory scattering amplitudes. Recently, a set of equations was derived based on Sudakov factorization, constraining the soft anomalous dimension matrix of multi-leg scattering amplitudes to any loop order, and relati...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/JHEP02(2010)081 http://cds.cern.ch/record/1213901 |