Publications
Publication Information
| Title | Light baryon resonances from a coupled-channel study including KSigma photoproduction |
| Authors | D. Ronchen, Michael Doring, Ulf-G. Meissner, Chao-Wei Shen, Yu-Fei Wang |
| JLAB number | JLAB-THY-22-3667 |
| LANL number | arXiv:2208.00089 |
| Other number | DOE/OR/23177-5548 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for European Physical Journal A Volume 58 Issue 2022 Page(s) 229 | |
| Publication Abstract: | The Julich-Bonn dynamical coupled-channel approach is extended to include KSigma 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 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 Delta resonances is extracted in terms of pole positions and residues. We discuss the impact of the gamma p -> K Sigma channels in detail and investigate the influence of recent polarization data for eta p photoproduction. |
| Experiment Numbers: | |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1140/epja/s10050-022-00852-1 |
| Accepted Manuscript: | s10050-022-00852-1.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |