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Two-Loop Rational Terms in Yang-Mills Theories
Jean-Nicolas Lang, Stefano Pozzorini, Hantian Zhang +1
Scattering amplitudes in dimensions involve particular terms that originate from the interplay of UV poles with the dimensional parts of loop numerators. Such contributio…
Rational terms in two-loop calculations
Stefano Pozzorini, Hantian Zhang, Max F. Zoller
We present an extension of the renormalisation procedure based on the R-operation in dimensions at two-loop level, in which the numerators of all Feynman diagrams can be constr…
Rational Terms of UV Origin at Two Loops
Stefano Pozzorini, Hantian Zhang, Max F. Zoller
The advent of efficient numerical algorithms for the construction of one-loop amplitudes has played a crucial role in the automation of NLO calculations, and the development of sim…