论文标题
耦合通道研究中的轻baryon共鸣，包括$ \ mathbf {kς} $ Photoproduction
Light baryon resonances from a coupled-channel study including $\mathbf{KΣ}$ photoproduction
论文作者
论文摘要
Jülich-bonn动力耦合通道方法扩展到包括$kς$ photodroduction of proton。同时分析了$ k^+σ^0 $和$ k^0σ^+$的差分横截面和（双重）两极化数据，并通过pion和光子诱导的$πn$，$ηn$，$kλ$和$kς$最终州的生产和光子诱导的生产，总计超过67,000个数据点，总计超过67,000个数据点，以$ w <2.4 $ w <2.4 $ gev。根据拟合结果，根据极点和残留物来提取$ n^*$和$δ$共振的光谱。我们详细讨论了$γp\对Kς$频道的影响，并研究了$ηp$光生生产的最新极化数据的影响。
The Jülich-Bonn dynamical coupled-channel approach is extended to include $KΣ$ photoproduction off the proton. Differential cross section and (double) polarization data for $K^+Σ^0$ and $K^0Σ^+$ are analysed simultaneously with the pion- and photon-induced production of $πN$, $ηN$, $KΛ$, and $KΣ$ final states, totaling more than 67,000 data points for center-of-mass energies $W<2.4$ GeV. Based on the fit results the spectrum of $N^*$ and $Δ$ resonances is extracted in terms of pole positions and residues. We discuss the impact of the $γp\to KΣ$ channels in detail and investigate the influence of recent polarization data for $ηp$ photoproduction.
