How does the S11 N*(890) state emerge from a naive K-matrix fit?
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How does the S11 N*(890) state emerge from a naive K-matrix fit? |
| Yao Ma,Wen-Qi Niu,Yu-Fei Wang,Han-Qing Zheng |
| Figure 5. The left cut caused by t-channel ρ meson exchange (circular arc); u-channel exchange (line segment from cL to cR [ |
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