Hadron spectroscopy and interactions from lattice QCD
  Lattice QCD approach to study the hadronic resonances and exotic hadrons is described at an introductory level. The main challenge is that these states decay strongly via one or more decay channels, and they often lie near thersholds. Specific results for conventional and exotic hadrons are shown to illustrate the current status. 
Sasa Prelovsek
hep-ph hep-lat