On the nature of the X(3872)

Abstract

We present recent studies of charmonium multiquark states. We use different interacting models and numerical methods to study deeply bound four-quark states and meson-meson molecules. No deeply bound four-quark states are found in our analysis. A nice description of the X(3872) is obtained as a $D{\bar{D}}^{\ast }-J/\Psi \omega$ coupled channel state.

Comments: 3 pages. Talk presented at the Conference MESON 2010, 10-15 june 2010, Krakow, Poland. To be published in International Journal of Modern Physics A