9d ago
Infrared Singularities of Multileg Amplitudes with a Massive Particle at Three Loops
Einan Gardi · Zehao Zhu
Abstract
Author(s): Einan Gardi and Zehao Zhu<br/><p>We determine the complete three-loop QCD soft anomalous dimension for multileg amplitudes involving a single massive colored particle and any number of massless ones. This is achieved by applying a novel strategy based on a light-cone expansion of correlators of semi-infinite Wilson lines using the …</p><br/>[Phys. Rev. Lett. 137, 101901] Published Wed Sep 02, 2026
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