加载中…
An analysis including most recent Belle data on X(3872) is performed, using coupled channel Flatt'e formula. A third sheet pole close to but threshold is found, besides the bound state/virtual state pole discussed in previous literature. The co-existence of two poles near the threshold indicates that the X(3872) may be of ordinary $c\bar c$ state origin, distorted by strong coupled channel effects. The latter manifests itself as a molecular bound state (or a virtual state).

生成讲解博客的中文版本

生成AI智能校验的中文版本