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Logarithmic EW corrections at one-loop
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DOI：10.1140/epjc/s10052-024-13430-0.png)
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Abstract
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We present a fully automated implementation of next-to-leading order electroweak (NLO EW) corrections in the logarithmic approximation in OpenLoops. For energies above the electroweak scale NLO EW corrections are logarithmically enhanced and in tails of kinematic distributions of crucial LHC processes yield correction factors of several tens of percent. The implementation of the logarithmic Sudakov EW approximation in the amplitude generator OpenLoops is fully general, largely model independent, it supports the computation of EW corrections to resonant processes, and it is suitable for extensions to the two-loop NNLO EW level. The implementation is based on an efficient representation of the logarithmic approximation in terms of an effective vertex approach. Investigating a set of representative LHC processes we find excellent agreement between the logarithmic approximation and full one-loop results in observables where the assumptions of the EW Sudakov approximation are fulfilled.
Keywords:
ELECTROWEAK RADIATIVE-CORRECTIONS
EQUIVALENCE THEOREM
LEADING LOGARITHMS
PRECISE FORMULATION
HADRONIC PRODUCTION
MASS SINGULARITIES
WEAK CORRECTIONS
PAIR PRODUCTION
FORM-FACTOR
W-BOSONS
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4.8
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1.8W
Citations:
4.7W
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