Looking for pentaquarks in Lattice QCD

Abstract

Pentaquark states in lattice QCD probably lie close in energy to two particle scattering states. Correctly identifying the resonant state is a challenging, yet tractable, problem given the terascale computing facilities available today. We summarize the initial round of exploratory lattice calculations and discuss what should be accomplished in the next round.

Comments: 4 pages, 1 figure, to appear in the First Meeting of the APS Topical Group on Hadronic Physics (GHP2004), 24-26 October 2004, Fermilab