ψ’→Ξ(1530)Ξ(1530)-bar和ψ'→ΞΞ(1530)-bar+c.c.的实验研究

重子谱是强子谱的其中一个分支，一直是粒子物理和核物理研究交叉领域的一个前沿热点之一。粲偶素的重子衰变为研究重子的各种性质提供了一种重要渠道。利用BESIII实验采集两批共约450兆的ψ'数据样本，我们将研究衰变过程ψ'→Ξ(1530)Ξ(1530)-bar和SU(3)破坏的衰变过程ψ'→ΞΞ(1530)-bar + c.c.的中性模式和带电模式，测量其衰变分支比和Ξ(1530)的角分布参数。这些测量和研究将有助于我们理解激发态重子Ξ(1530)的夸克结构和检验不同理论模型的计算，并进一步理解SU(3)对称性破坏机制，检验同位旋守恒和“12%规则”。

Baryon spectrum，one branch of the hadron spectrum，is one of the hot topics in the field of particle and nuclear physics. Study of Charmonium decaying into di-baryons can provide a channel to study the property of baryons. Using 450 M ψ' data sample collected at BESIII, study of the neutral mode and charged mode for ψ'→Ξ(1530)Ξ(1530)-bar and ψ'→ΞΞ(1530)-bar + c. c. , including measuring the branching fraction and the angular distribution of Ξ(1530), will be performed. These measurements will be helpful for us to understand the inner structure of Ξ(1530). It will also shed light on testing the different theoretical model, further understanding the SU(3) violation mechanism, and testing the isospin conservation and “12% rule”.