Three-loop helicity amplitudes for four-quark scattering in massless QCD

We compute the three-loop corrections to the helicity amplitudes for qq¯¯ → QQ¯¯¯¯ scattering in massless QCD. In the Lorentz decomposition of the scattering amplitude we avoid evanescent Lorentz structures and map the corresponding form factors directly to the physical helicity amplitudes. We reduc...

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Manylion Llyfryddiaeth
Prif Awduron: Caola, F, Chakraborty, A, Gambuti, G, von Manteuffel, A, Tancredi, L
Fformat: Journal article
Iaith:English
Cyhoeddwyd: Scuola Internazionale Superiore di Studi Avanzati 2021