John M. Campbell

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20242026

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hep-ph2026

A portable implementation of one-loop Feynman integrals

Reet Barik, John M. Campbell, Taylor Childers +3

We present the first performance-portable implementation of a loop integral library for high-energy particle physics. The new code is based on the QCDLoop package, which provides a…

hep-ph2026

Double-real corrections to $e^{+} e^{-} \to q q ˉ$ with partial fractioned scalar radiators and identified particle kinematics mappings

John M. Campbell, Stefan Höche, Max Knobbe

We present a new approach to local infrared subtraction for next-to-next-to-leading order QCD calculations in $e^{+} e^{-} \to q q ˉ$ . Overlapping singularities in the multipole radia…

A portable implementation of one-loop Feynman integrals

Double-real corrections to e+e−→qqˉ​ with partial fractioned scalar radiators and identified particle kinematics mappings

Double-real corrections to $e^{+} e^{-} \to q q ˉ$ with partial fractioned scalar radiators and identified particle kinematics mappings