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Three-loop corrections to the soft anomalous dimension in multileg scattering

We present the three-loop result for the soft anomalous dimension governing long-distance singularities of multi-leg gauge-theory scattering amplitudes of massless partons. We compute all contributing webs involving semi-infinite Wilson lines at three loops and obtain the complete three-loop correct...

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Detalles Bibliográficos
Autores principales: Almelid, Øyvind, Duhr, Claude, Gardi, Einan
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.117.172002
http://cds.cern.ch/record/2030448