Charm spectroscopy beyond the constituent quark model
arXiv:0810.2875
Abstract
We study the nature of the new charm and charmonium like states observed in the last few years, using a constituent quark model with an screened confinement potential. In the open charm sector we discuss different options for the including tetraquark configurations. In the hidden charm sector the new Y(4360) and Y(4660) are interpreted as states. The influence in the puzzling 3940 MeV region of multiquark configuration is discussed.
Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 5 pages, LaTeX