New Charmonium-like States at B-Factories

Abstract

Since the discovery of the X(3872) in 2003 the B-factory experiments BaBar and Belle have been driving forces in the spectroscopy of new charmonium-like states. In this article the latest results on the decays X(3872) -> D0 D*0bar and X(3872) -> psi gamma, where psi stands for J/psi or psi(2S), are presented and analyses of Z(4430)+ -> psi pi+ and Z(4050/4250)+ -> chi_c1 pi+ are discussed.

to be published in the proceedings of DIS-2009, XVIIth. International Workshop on Deep-Inelastic Scattering and Related Subjects, Madrid, Spain, April 26-30, 2009