Speaker
Robert Edwards
(JLAB)
Description
The determination of the excited spectrum of baryons has been a major focus of experimental efforts worldwide. Spectroscopy reveals
fundamental aspects of hadronic physics; however, the excited spectrum of light quark baryons is not well determined nor understood. Recent advances in lattice QCD calculations have enabled, for the first time, the determination of the highly excited spectrum of mesons and baryons. While these calculations are still in their early stages, there is some insight as to the nature of the highly excited nucleon and delta spectrum, both positive and negative parity. These recent calculations also demonstrate how resonant information, namely the mass and width, can be obtained. Many challenges remain, and the prospects for future work is described.
Primary author
Robert Edwards
(JLAB)