Properties of X(3872) as a hadronic molecule with a negative parity

Abstract

We discuss the possible interpretation of X(3872) as a $D{D}^{\ast }$ hadronic molecule with $J^{PC}=2^{-+}$. Using the phenomenological Lagrangian approach, we studied its radiative and strong decay properties. We find that our model with about 97.6% isospin zero component explains the existing data nicely. We predict the partial widths of the radiative and strong decays of X(3872) and show that the measurement of the ratio $\mathcal{B}(X(3872)\to {\chi }_{c0}{\pi }^0)/\mathcal{B}(X(3872)\to {\chi }_{c1}{\pi }^0)$ may signal the nature of X(3872).

Comments: 5 pages, talk presented at The 4th International Workshop on Charm Physics, Oct 21-24, 2010, Beijing, China