Unpolarized structure functions at Jefferson Lab

TL;DR

This paper reviews recent high-precision measurements of unpolarized structure functions at Jefferson Lab, highlighting advances in understanding nucleon structure, quark-hadron duality, and neutron structure through innovative experimental techniques.

Contribution

It presents new experimental data and analysis that deepen insights into nucleon structure and the transition from hadron to quark degrees of freedom, including neutron structure without nuclear contamination.

Findings

Quantitative tests of quark-hadron duality

High-precision transverse and longitudinal structure functions

First glimpses of free neutron structure

Abstract

Over the past decade measurements of unpolarized structure functions at Jefferson Lab with unprecedented precision have significantly advanced our knowledge of nucleon structure. These have for the first time allowed quantitative tests of the phenomenon of quark-hadron duality, and provided a deeper understanding of the transition from hadron to quark degrees of freedom in inclusive scattering. Dedicated Rosenbluth-separation experiments have yielded high-precision transverse and longitudinal structure functions in regions previously unexplored, and new techniques have enabled the first glimpses of the structure of the free neutron, without contamination from nuclear effects.