$Numerical evaluation of two-loop QCD helicity amplitudes for gg → t t ¯ g $$ gg\to t\overline{t}g $$ at leading colour$

Numerical evaluation of two-loop QCD helicity amplitudes for gg → t t ¯ g $$ gg\to t\overline{t}g $$ at leading colour

Abstract We present the first benchmark evaluation of the two-loop finite remainders for the production of a top-quark pair in association with a jet at hadron colliders in the gluon channel. We work in the leading colour approximation, and perform the numerical evaluation in the physical phase spac...

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Bibliographic Details
Main Authors:	Simon Badger, Matteo Becchetti, Colomba Brancaccio, Heribertus Bayu Hartanto, Simone Zoia
Format:	Article
Language:	English
Published:	SpringerOpen 2025-03-01
Series:	Journal of High Energy Physics
Subjects:	Higher-Order Perturbative Calculations Scattering Amplitudes Top Quark
Online Access:	https://doi.org/10.1007/JHEP03(2025)070
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