The 1/Nc Expansion for Excited Baryons
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
I describe recent progress at understanding the excited baryon spectrum of QCD from lattice gauge simulations. I begin by outlining the recipe for spectroscopy calculations. I compare lattice calculations of the spectrum of the baryons containing the light (u,d) and strange quarks for pion masses in excess of 400 MeV, and compare with expectations from QCD-inspired descriptions of the spectrum, before addressing the issue of unstable resonances in lattice QCD. I conclude by describing the prospects for examining the electromagnetic properties of baryon excited states from lattice gauge calculations.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1992798
- Report Number(s):
- JLAB-THY-12-1717; DOE/OR/23177-6810
- Country of Publication:
- United States
- Language:
- English
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