Nonperturbative corrections from an s-channel approach

TL;DR

This paper explores nonperturbative corrections in quantum chromodynamics using an s-channel approach, focusing on multi-parton effects, operator expansions, and their relation to parton distributions, with an application to initial-state collinear evolution.

Contribution

It introduces a novel s-channel framework for analyzing nonperturbative multi-parton corrections and clarifies their connection to parton distributions and evolution.

Findings

Relations between eikonal-line matrix elements and parton distributions established

Illustration of initial-state collinear evolution provided

Enhanced understanding of nonlocal operator expansion in QCD

Abstract

We report on studies of multi-parton corrections from nonlocal operator expansion. We discuss relations between eikonal-line matrix elements and parton distributions, and present an illustration for initial-state collinear evolution.