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Joseph M. W. Strong

Publications and source records attributed to Joseph M. W. Strong.

4 recordsLinked to original sources
arXiv2025

The Seven-Point Two-Loop Full-Color All-Plus Helicity Yang-Mills Amplitude

The seven-gluon two-loop full-color Yang-Mills amplitude is presented in a compact analytic form where we use the methods of four-dimensional unitarity cuts to obtain the polylogarithmic pieces and augmented recursion to obtain the rational pieces. Furthermore, an $n$-point form for the full-color polylogarithmic piece is presented. We use these results to probe for potential relations amongst the two-loop partial amplitudes.

hep-ph↗
arXiv2020

An $n$-point QCD two-loop amplitude

We present an explicit expression for a particular $n$-gluon two loop scattering partial amplitude. Specifically we present an analytic form for the single trace $N_c$ independent colour partial amplitude for the case where all external gluons have positive helicity.

hep-ph↗
arXiv2019

Color Dressed Unitarity and Recursion for Yang-Mills Two-Loop All-Plus Amplitudes

We present a direct computation of the full color two-loop five-point all-plus Yang-Mills amplitude using four dimensional unitarity and recursion. We present the $SU(N_c)$ amplitudes in compact analytic forms. Our results match the explicit expressions previously computed but do not require full two-loop integral methods.

hep-ph↗