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Analytic integration of soft and collinear radiation in factorised QCD cross sections at NNLO

Within the framework of local analytic sector subtraction, we present the full analytic integration of double-real and real-virtual local infrared counterterms that enter NNLO QCD computations with any number of massless final-state partons. We show that a careful choice of phase-space mappings lead...

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Detalles Bibliográficos
Autores principales: Magnea, Lorenzo, Pelliccioli, Giovanni, Signorile-Signorile, Chiara, Torrielli, Paolo, Uccirati, Sandro
Lenguaje:eng
Publicado: 2020
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP02(2021)037
http://cds.cern.ch/record/2743017
Descripción
Sumario:Within the framework of local analytic sector subtraction, we present the full analytic integration of double-real and real-virtual local infrared counterterms that enter NNLO QCD computations with any number of massless final-state partons. We show that a careful choice of phase-space mappings leads to simple analytic results, including non-singular terms, that can be obtained with conventional integration techniques.