Publications
Publication Information
| Title | $N^*$ resonances from $KLambda$ amplitudes in sliced bins in energy |
| Authors | Alexei Anisovich, Volker Burkert, M. Hadzimehmedovic, David Ireland, Eberhard Klempt, V. Nikonov, R. Omerovic, Andrey Sarantsev, J. Stahov, Alfred Svarc, Ulrike Thoma |
| JLAB number | JLAB-PHY-17-2568 |
| LANL number | arXiv:1712.07537 |
| Other number | DOE/OR/23177-4329 |
| 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 53 Issue 12 Page(s) 242 Refereed | |
| Publication Abstract: | The two reactions $\gamma p\to K^+\Lambda$ and $\pi^-p\to K^0\Lambda$ are analyzed to determine the leading photoproduction multipoles and the pion-induced partial wave amplitudes in slices of the invariant mass. The multipoles and the partial-wave amplitudes are simultaneously fitted in a multichannel Laurent+Pietarinen model (L+P model), which determines the poles in the complex energy plane on the second Riemann sheet close to the physical axes. The results from the L+P fit are compared with the results of an energy-dependent fit based on the Bonn-Gatchina (BnGa) approach. The study confirms the existence of several poles due to nucleon resonances in the region at about 1.9\,GeV with quantum numbers $J^P = 1/2^+$, $3/2^+, 1/2^-, 3/2^-, 5/2^-$. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | http://dx.doi.org/10.1140/epja/i2017-12443-x |
| Accepted Manuscript: | 1712.07537.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |