Higher twist parton distributions from LCWFs

TL;DR

This paper investigates constructing higher-twist parton distributions in nucleons using light-cone wave functions, enabling a unified description of polarized and unpolarized densities at large Bjorken x.

Contribution

It introduces a method to derive twist-3 parton distributions from convolution integrals of light-cone wave functions, extending the understanding of nucleon structure.

Findings

Successful construction of twist-3 distributions from qqqg and three-quark wave functions.

Provides a framework connecting wave functions to higher-twist parton distributions.

Enhances the description of polarized and unpolarized parton densities at high x.

Abstract

We report on the results of a recent work, where we explore the possibility to construct higher-twist parton distributions in a nucleon at some low reference scale from convolution integrals of the light-cone wave functions (LCWFs). These WFs provide one with a reasonable description of both polarized and unpolarized parton densities at large values of the Bjorken variable. Twist-3 parton distributions are then constructed as convolution integrals of qqqg and usual three-quark WFs.