Publications
Publication Information
Title | The impact of KLambda photoproduction on the resonance spectrum |
Authors | D. Ronchen, Michael Doring, U.-G. Meissner |
JLAB number | JLAB-THY-18-2640 |
LANL number | arXiv:1801.10458 |
Other number | DOE/OR/23177-4341 |
Document Type(s) | (Journal Article) |
Associated with EIC: | No |
Supported by Jefferson Lab LDRD Funding: | No |
Funding Source: | Nuclear Physics (NP) |
Other Funding: | NSF CAREER grant PHY-1452055, NSF/PIF grant No. 1415459 DOE grant No. DE-SC001658 |
Journal Compiled for European Physical Journal A Volume 54 Page(s) 110 Refereed | |
Publication Abstract: | The Jülich-Bonn coupled-channel framework is extended to K^+Lambda photoproduction. The spectrum of nucleon and Delta resonances is extracted from simultaneous fits to several pion-induced reactions in addition to pion, eta and K^+ Lambda photoproduction off the proton. More than 40,000 data points up to a center-of-mass energy of E~2.3 GeV including recently measured double-polarization observables are analyzed. The influence of the gamma p -> K^+ Lambda channel on the extracted resonance parameters and the appearance of states not seen in other channels is investigated. The Jülich-Bonn model includes effective three-body channels and guarantees unitarity and analyticity, which is a prerequisite for a reliable determination of the resonance spectrum in terms of poles and residues. |
Experiment Numbers: | other |
Group: | THEORY CENTER |
Document: | |
DOI: | https://doi.org/10.1140/epja/i2018-12541-3 |
Accepted Manuscript: | 1801.10458.pdf |
Supporting Documents: | |
Supporting Datasets: |