How does the
S
11
N
*(890) state emerge from a naive
K
-matrix fit?
Yao Ma,Wen-Qi Niu,Yu-Fei Wang,Han-Qing Zheng
Table 2.
Fit II: poles obtained using equation (
7
).
Sheets
Pole positions on $\sqrt{s}$ plane in unit of GeV
I
1.85 − 0.29i
II
1.66 − 0.04i; 0.77 − 0.23i
III
1.66 − 0.06i; 1.50 − 0.05i
IV
1.53 − 0.01i