A coupled-channel analysis of $K\Lambda$ production in the nucleon resonance region
Nuclear Theory
2008-11-26 v1
Abstract
A unitary coupled-channel effective Lagrangian model is applied to the combined analysis of the reactions in the energy region up to 2 GeV. To constrain the resonance couplings to the final state the recent photoproduction data obtained by the SAPHIR, SPring-8, and CLAS groups are included into the calculations. The main resonance contributions to the process stem from the , , and states. The second bump at 1.9 GeV seen in the photoproduction cross section data is described as a coherent sum of the resonance and background contributions. The prediction for the beam polarization observable is presented.
Keywords
Cite
@article{arxiv.nucl-th/0505010,
title = {A coupled-channel analysis of $K\Lambda$ production in the nucleon resonance region},
author = {V. Shklyar and H. Lenske and U. Mosel},
journal= {arXiv preprint arXiv:nucl-th/0505010},
year = {2008}
}