NNLO Virtual corrections to W+ W- production at the LHC
Grigorios Chachamis
TL;DR
This paper presents a precise calculation of two-loop virtual QCD corrections to W+W- production at the LHC, improving theoretical predictions for high-energy collider processes.
Contribution
It provides the first exact two-loop virtual correction calculation for W+W- production in the high-energy limit, confirming infrared pole structures with Catani's formalism.
Findings
Infrared pole structure matches theoretical predictions
Calculation is exact up to W boson mass suppressed terms
Enhances precision of W+W- production modeling at the LHC
Abstract
We report on a recent calculation of the two-loop virtual QCD corrections to the W boson pair production in the quark-anti-quark-annihilation channel in the limit where all kinematical invariants are large compared to the mass of the W boson. Our result is exact up to terms suppressed by powers of the W boson mass. The infrared pole structure is in agreement with the prediction of Catani's general formalism for the singularities of two-loop QCD amplitudes.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Particle Detector Development and Performance