Starting in the next decade, the experiments at the Brookhaven Electron-Ion Collider (EIC) will open up unique opportunities to gain precise information on the structure of strongly bound particles. To fully harvest that physics potential, it is now time for the QCD theory community to prepare and sharpen the necessary theory tools. The aim of this scientific program is to bring together experts on various subdisciplines and lead them into a coordinated effort to improve perturbative QCD calculations to prepare an optimal extraction of nonperturbative hadronic structure functions from EIC data. The nonperturbative objects we want to focus on are on the one hand various parton distributions, including collinear, transverse-momentum dependent and generalized proton PDFs, nuclear PDFs and multi-parton distribution functions, but also fragmentation functions and the matrix elements describing nonperturbative Quarkonium formation. The tools to be discussed involve higher-order QCD perturbative calculations, resummations of threshold and power corrections, higher twist corrections, and matching of parton showers and hard interactions in Monte Carlo event generators.
The Scientific Program is organized by the DFG Integrated Research Group 2926 “Next Generation Perturbative QCD for Hadron Structure: Preparing for the Electron-Ion-Collider.” Principle Investigators (PIs) of the FOR2926 research unit:
- Taushif Ahmed, University of Regensburg
- Vladimir Braun, University of Regensburg
- Mathias Butenschön, University of Hamburg
- Markus Diehl, DESY Hamburg
- Barbara Jäger, University of Tübingen
- Bernd Kniehl, University of Hamburg
- Sven-Olaf Moch, University of Hamburg
- Werner Vogelsang, University of Tübingen
- Maria Pia Zurita, University of Regensburg
