Speaker
Jinzi Wu
(The George Washington University)
Description
The Roper resonance does not agree with many quark model predictions or lattice QCD calculations. One reason could be the strong three-body dynamics for this channel. A two- and three-body unitary amplitude is developed, allowing for the consistent and unitary inclusion of $\pi N$ and $\pi\pi N$ channels. Available partial-wave data in the Roper and the isobar sub-channels are described, allowing for the most precise pole determination of the Roper resonance to date.
Authors
Jinzi Wu
(The George Washington University)
Maxim Mai
(University of Bern)
Michael Doring
(George Washington University and Thomas Jefferson National Accelerator Facility)