Speaker
Description
For the canonical TMD processes including Drell-Yan and semi-inclusive DIS, several azimuthal angle-dependent structure functions show up at the next-to-leading power (NLP). Previously at SCET, I discussed the bare factorization theorem for these NLP structure functions, where a set of TMD quark-gluon-quark correlators and their hard matching coefficient are the main new ingredients. This year I will discuss the renormalization for the qgq correlators which is nontrivial, including both endpoint divergences as well as a novel rapidity divergence that is not canceled by standard multiplicative counterterms. In this talk, I will discuss definitions for the renormalized quark-gluon-quark correlators, which cancel these divergences, and only depend on one hadronic state.
