Perfect DD* Molecular Prediction Matching the Tcc Observation at LHCb

• 作者: Ning Li Zhi-Feng Sun Xiang Liu Shi-Lin Zhu
• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2021,（9）
• 所属期刊栏目: NUCLEAR PHYSICS
• 页码范围: 36-38
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/38/9/092001

摘要

In 2012,we investigated the possible molecular states composed of two charmed mesons[Phys.Rev.D 88(2013)114008;2012 arXiv:1211.5007[hep-ph]].The D*D system with the quantum numbers of I(JP)=0(1+)was found to be a good candidate of the loosely bound molecular state.This state is very close to the D*D threshold with a binding energy around 0.47 MeV.This prediction was confirmed by the new LHCb observation of Tcc+[see Franz Muheim's talk at the European Physical Society conference on high energy physics 2021].