如何从关联函数揭示$Σ^*(1430)(1/2^-)$态的本质
How to unravel the nature of the $Σ^*(1430) (1/2^-)$ state from correlation functions
AI总结：
针对Belle合作组观测到的$\bar K N$阈值处$Σ^*(1/2^-)$态，计算多态关联函数并通过重采样方法解决反问题，能以相对精度确定各道散射参数并发现对应尖点结构，揭示该态本质。
摘要：
我们计算了$\bar K^0 p$、$π^+ Σ^0$、$π^0 Σ^+$、$π^+ Λ$和$ηΣ^+$态的关联函数，在手征幺正方法中，这些函数预测在$\bar K N$阈值处存在一个激发的$Σ^*(1/2^-)$态，该态最近被Belle合作组观测到。完成此计算后，我们着手解决反问题：从这些关联函数中能获取多少信息。通过重采样方法，可在通用框架下通过分析以相对精度确定所有道的散射参数，并在$\bar K N$阈值处的不同振幅中发现对应$Σ^*(1/2^-)$的清晰尖点结构。
英文摘要：
We calculate the correlation functions for the $\bar K^0 p, π^+ Σ^0, π^0 Σ^+, π^+ Λ$, and $ηΣ^+$ states, which in the chiral unitary approach predict an excited $Σ^*(1/2^-)$ state at the $\bar K N$ threshold, recently observed by the Belle Collaboration. Once this is done, we tackle the inverse problem of seeing how much information one can obtain from these correlation functions. With the resampling method, one can determine the scattering parameters of all the channels with relative precision by means of the analysis in a general framework, and find a clear cusplike structure corresponding to the $Σ^*(1/2^-)$ in the different amplitudes at the $\bar{K}N$ threshold.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
