论文标题
$ n^*（1895）$的衰减属性
Decay properties of $N^*(1895)$
论文作者
论文摘要
核子共振的性质仍在争论中，同时累积了许多实验数据。在这项工作中，我们专注于位于各种介子 - 巴里昂耦合通道的散射区域中的负平性共振$ n^*（1895）$，这种动力学对于理解其性质至关重要。为了测试这种强子动态的相关性，我们详细研究了$ n^*（1895）$的衰减属性。我们研究了$ n^*（1895）$的两个极性与观察到的衰减属性兼容。此外，我们发现共鸣衰减到涉及$λ（1405）$和$σ（1400）$的最终状态，其中尚未在实验中观察到后者。这样的衰减过程对于研究上述超子共振的特性很有用。
The nature of nucleon resonances is still being debated, while much experimental data are accumulated. In this work, we focus on the negative parity resonance $N^*(1895)$ which is located in the scattering region of various meson-baryon coupled channels, and such dynamics can be crucial in understanding its properties. To test the relevance of such hadron dynamics, we investigate the decay properties of $N^*(1895)$ in detail. We examine how a two pole nature of $N^*(1895)$ is compatible with its observed decay properties. Moreover, we find that the resonance decays into final states involving $Λ(1405)$ and $Σ(1400)$, where the latter is not yet observed experimentally. Such decay processes can be useful to study the properties of the aforementioned hyperon resonances.
