Dynamics of Multiquark Systems: Mass, Width and Exotics
Abstract
Description
Exotic multi-quark states are examined in the quark model and in QCD. Current status of theoretical studies of the pentaquark Theta^+ is reported. We show recent analyses of multi-quark components of baryons. A novel method to extract a compact excited state in the lattice QCD is applied. We also discuss how to determine mixings of different Fock components in the hadron in the QCD sum rule approach.
Manuscript prepared for the Proceedings of the 18th International IUPAP Conference on Few-Body Problems in Physics, FB18, held in Santos, Brazil, on August 21-16, 2006, and also for the International workshop on Strangeness Nuclear Physics (SNP2006), held in Zhang Jia Jie, China, on September 5-9, 2006
Manuscript prepared for the Proceedings of the 18th International IUPAP Conference on Few-Body Problems in Physics, FB18, held in Santos, Brazil, on August 21-16, 2006, and also for the International workshop on Strangeness Nuclear Physics (SNP2006), held in Zhang Jia Jie, China, on September 5-9, 2006