论文标题
N^*（1895）的外在特性及其对光超子的光生源的影响
Exotic properties of N^*(1895) and its impact on photoproduction of light hyperons
论文作者
论文摘要
在这项工作中，我们概述了我们最近对$ n^*（1895）$的性能的研究结果及其对$λ（1405）$的光生源的横截面的结果影响。此外，我们讨论了存在等级国家的可能性，其质量类似于$λ（1405）$，我们称为$σ（1400）$。通过激励$σ（1400）$的实验研究的想法，我们研究了其光生生产过程，并确定了各自的横截面和极化可观察到的。我们还研究了$ n^*（1895）$ to $kς（1400）$的耦合，并发现它为阈值附近的横截面做出了重要贡献。在此过程中，我们已经确定了$ n^*（1895）$的分支比率，涉及$λ（1405）$和$σ（1400）$的最终状态，范围为6-7 MEV。在研究$ n^*（1895）$的属性时，我们的发现可以激励对实验数据的部分波分析中的替代过程。
In this work, we outline the findings of our recent study of the properties of $N^*(1895)$ and its consequential impacts on the cross sections of the photoproduction of $Λ(1405)$. Further, we discuss the possibility of the existence of an isovector state, with the mass similar to $Λ(1405)$, which we refer to as $Σ(1400)$. With the idea of motivating experimental investigations of $Σ(1400)$, we have studied its photoproduction process and determined the respective cross sections and polarization observables. We have studied also the coupling of $N^*(1895)$ to $KΣ(1400)$ and found that it gives an important contribution to the cross sections near the threshold. In the process, we have determined the branching ratios of the decay of $N^*(1895)$, to the final states involving $Λ(1405)$ and $Σ(1400)$, to be in the range of 6-7 MeV. Our findings can motivate consideration of alternative processes in partial wave analyses of experimental data, when studying the properties of $N^*(1895)$.
