Renormalization of the Next-to-Leading-Power Soft Function for the Drell-Yan Off-diagonal Channel

Martin Beneke, Yao Ji, Erik Sünderhauf +1

We renormalize the soft function entering the factorization and resummation of the $qg$ parton-scattering channel of the Drell-Yan process near the kinematic threshold $\hat{s}\to…