Scalar Hidden-Charm Tetraquark States with QCD Sum Rules

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2018,（2）
• 页码范围: 191-202
• 页数: 12页
• 语种: 英文
• DOI: 10.1088/0253-6102/69/2/191

摘要

In this article,we study the masses and pole residues of the pseudoscalar-diquark-pseudoscalar-antidiquark type and vector-diquark-vector-antidiquark type scalar hidden-charm cu-c-d (cu-c-s) tetraquark states with QCD sum rules by taking into account the contributions of the vacuum condensates up to dimension-10 in the operator product expansion.The predicted masses can be confronted with the experimental data in the future.Possible decays of those tetraquark states are also discussed.