TY  - JOUR
AU  - Rönchen, D.
AU  - Döring, M.
AU  - Meissner, Ulf-G.
AU  - Shen, C.-W.
TI  - Light baryon resonances from a coupled-channel study including $ K\Sigma$ photoproduction
JO  - The European physical journal / A
VL  - 58
IS  - 11
SN  - 1434-6001
CY  - Heidelberg
PB  - Springer
M1  - FZJ-2022-05203
SP  - 229
PY  - 2022
AB  - The Jülich-Bonn dynamical coupled-channel approach is extended to include $K\Sigma$ photoproduction off the proton. Differential cross section and (double) polarization data for $K^+\Sigma^0$ and $K^0\Sigma^+$ are analysed simultaneously with the pion- and photon-induced production of $\pi N$, $\eta N$, $K\Lambda$, and $K\Sigma$ final states, totaling almost 72,000 data points for center-of-mass energies $W<2.4$~GeV. Based on the fit results the spectrum of $N^*$ and $\Delta$ resonances is extracted in terms of pole positions and residues. We discuss the impact of the $\gamma p\to K\Sigma$ channels in detail and investigate the influence of recent polarization data for $\eta p$ photoproduction.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000889066000001
DO  - DOI:10.1140/epja/s10050-022-00852-1
UR  - https://juser.fz-juelich.de/record/911973
ER  -