QCD2019 Workshop Summary

TL;DR

This workshop summary highlights recent progress in understanding hadron structure and strong QCD mechanisms through experimental data and theoretical methods, aiming to address fundamental questions about mass, confinement, and hadron emergence.

Contribution

It consolidates recent experimental and theoretical advances in hadron structure studies, emphasizing future plans and the potential of Electron-Ion Collider research.

Findings

Progress in relating hadron observables to strong QCD mechanisms

Development of plans for future experimental and theoretical synergy

Potential breakthroughs with Electron-Ion Collider studies

Abstract

The topical workshop {\it Strong QCD from Hadron Structure Experiments} took place at Jefferson Lab from Nov. 6-9, 2019. Impressive progress in relating hadron structure observables to the strong QCD mechanisms has been achieved from the {\it ab initio} QCD description of hadron structure in a diverse array of methods in order to expose emergent phenomena via quasi-particle formation. The wealth of experimental data and the advances in hadron structure theory make it possible to gain insight into strong interaction dynamics in the regime of large quark-gluon coupling (the strong QCD regime), which will address the most challenging problems of the Standard Model on the nature of the dominant part of hadron mass, quark-gluon confinement, and the emergence of the ground and excited state hadrons, as well as atomic nuclei, from QCD. This workshop aimed to develop plans and to facilitate the future synergistic efforts between experimentalists, phenomenologists, and theorists working on studies of hadron spectroscopy and structure with the goal to connect the properties of hadrons and atomic nuclei available from data to the strong QCD dynamics underlying their emergence from QCD. These results pave the way for a future breakthrough extension in the studies of QCD with an Electron-Ion Collider in the U.S.