Exotic/charmonium hadron spectroscopy at Belle and BaBar
  A brief review of experimental results on charmonium and charmonium-like hadron spectroscopy at B-factories is presented. A special focus is put on recent results of eta_c and eta_c(2S) study, X(3872) radiative decays, omega J/psi final state study and search for charmonium production in radiative Upsilon decays. 
Dmitri Liventsev (for the Belle collaboration)
hep-ex