论文标题
在$ \ bar {p}λ$阈值附近的增强功能$χ_{c0} \ to \ bar {p} k^+λ$反应
Enhancement near the $\bar{p}Λ$ threshold in the $χ_{c0}\to \bar{p}K^+Λ$ reaction
论文作者
论文摘要
我们已经分析了BESIII合作报告的反应$χ_{C0} \至\ bar {p} k^+λ$，考虑到了中间$ K（1830）$，$ n（2300）$和$λ（1520）$ resonances $ k（1830）$ k（1830）$ k（1830）$ k（1830）$ resonances $ resonances的贡献。我们的结果与BESIII的测量非常吻合，发现$ \ bar {p}λ$阈值附近的异常增强主要是由于$ k（1830）$ resonance的贡献。我们还表明，高质量$ n^*$和$λ^*$的干扰无法在$ \ bar {p}λ$阈值附近产生异常增强。
We have analyzed the reaction $χ_{c0}\to \bar{p} K^+Λ$ reported by the BESIII Collaboration, taking into account the contributions from the intermediate $K(1830)$, $N(2300)$, and $Λ(1520)$ resonances. Our results are in good agreement with the BESIII measurements, and it is found that the anomalous enhancement near the $\bar{p}Λ$ threshold is mainly due to the contribution of the $K(1830)$ resonance. We also show that the interference of the high-mass $N^*$ and $Λ^*$ can not produce the anomalous enhancement near the $\bar{p}Λ$ threshold.
