Exploring Excited Hadrons in Lattice QCD

Abstract

Progress in extracting the spectrum of excited hadron resonances in lattice QCD Monte Carlo calculations is reviewed and the key issues and challenges in such computations are outlined. The importance of multi-hadron states as simulations with lighter pion masses are done is discussed, and the need for all-to-all quark propagators is emphasized.

Comments: Talk presented at Excited QCD, Zakopane, Poland, 8-14 February 2009, 6 pages, 4 figures