论文标题
lambda（1405）作为Skyrme模型中的K-Bar N Feshbach共振
Lambda(1405) as a K-bar N Feshbach resonance in the Skyrme model
论文作者
论文摘要
我们将lambda（1405）Hyperon描述为Skyrme模型中PI Sigma的腐烂通道的bar-kn准结合状态的Feshbach共振。在实验室框架中产生一个弱结合的bar-kn状态，而Sigma HyperON作为内在框架中的bar-kn状态很强。我们通过计算轴向电流的重子矩阵元件来获得BAR-KN和PI SIGMA通道的耦合。这种耦合使bar-kn绑定状态的衰减与pi-sigma的衰减。结果表明，Skyrme模型支持Lambda（1405）作为狭窄的feshbach共振。
We describe the Lambda(1405) hyperon as a Feshbach resonance of a bar-KN quasi-bound state coupled by a decaying channel of pi Sigma in the Skyrme model. A weakly bound bar-KN state is generated in the laboratory frame, while the Sigma hyperon as a strongly bound state of bar-KN in the intrinsic frame. We obtain a coupling of bar-KN and pi Sigma channels by computing a baryon matrix element of the axial current. This coupling enables the decay of the bar-KN bound state to pi-Sigma . It is shown that the Skyrme model supports the Lambda(1405) as a narrow Feshbach resonance.
