The automation of next-to-leading order electroweak calculations

Apr 26, 2018
121 pages
Published in:
  • JHEP 11 (2021) 085 (erratum),
  • JHEP 07 (2018) 185
  • Published: Jul 31, 2018
e-Print:
DOI:
Report number:
  • Nikhef/2018-015,
  • TUM-HEP-1138/18,
  • NIKHEF-2018-015,
  • TUM-HEP-1138-18

Citations per year

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Abstract: (Springer)
We present the key features relevant to the automated computation of all the leading- and next-to-leading order contributions to short-distance cross sections in a mixed-coupling expansion, with special emphasis on the first subleading NLO term in the QCD+EW scenario, commonly referred to as NLO EW corrections. We discuss, in particular, the FKS subtraction in the context of a mixed-coupling expansion, the extension of the FKS subtraction to processes that include final-state tagged particles, defined by means of fragmentation functions, and some properties of the complex mass scheme. We combine the present paper with the release of a new version of MadGraph5_aMC@NLO, capable of dealing with mixed-coupling expansions. We use the code to obtain illustrative inclusive and differential results for the 13-TeV LHC.
  • NLO Computations
  • higher-order: 1
  • perturbation theory
  • mass: complex
  • electroweak interaction: correction
  • quantum chromodynamics
  • fragmentation function
  • CERN LHC Coll
  • Monte Carlo
  • numerical calculations