报告人：东南大学 周智勇 副教授

报告题目："Exotic" hadron states and coupled-channel effects

时间：2015年11月19日星期四上午10点

地点：物理馆323室

报告摘要：Many new hadron states are observed in experiments.  Some of these states are beyond the expectations of the quark potential model, so they are regarded as "exotics".  We present that many of these signals could be understood well if the coupled-channel effects are included.  Actually, most of the states from the lightest scalar resonances to the heavy quarkonia might be incorporated into a unified scheme, qqbar seeds dressed by the hadron clouds.  We also found that respecting the coupled-channel unitarity might be helpful to determine the quantum numbers of some new hadron states.  These studies may shed more light on the nonperturbative aspects of QCD.