dorsal/arxiv
View SchemaA coupled-channel analysis of $K\Lambda$ production in the nucleon resonance region
| Authors | V. Shklyar, H. Lenske, U. Mosel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0505010 |
| URL | https://arxiv.org/abs/nucl-th/0505010 |
| DOI | 10.1103/PhysRevC.72.015210 |
| Journal | Phys.Rev.C72:015210,2005 |
Abstract
A unitary coupled-channel effective Lagrangian model is applied to the combined analysis of the $(\pi,\gamma) N \to K\Lambda$ reactions in the energy region up to 2 GeV. To constrain the resonance couplings to the $K\Lambda$ 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 $S_{11}(1650)$, $P_{13}(1720)$, and $P_{13}(1900)$ 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.
{
"annotation_id": "eab36642-1f5f-479f-b4e0-9bc3b9ff13b7",
"date_created": "2026-03-02T18:00:05.085000Z",
"date_modified": "2026-03-02T18:00:05.085000Z",
"file_hash": "de20292392c12d54432f9847fd736348a204433d76a3ca4f3488981a076ed035",
"private": false,
"record": {
"abstract": "A unitary coupled-channel effective Lagrangian model is applied to the\ncombined analysis of the $(\\pi,\\gamma) N \\to K\\Lambda$ reactions in the energy\nregion up to 2 GeV. To constrain the resonance couplings to the $K\\Lambda$\nfinal state the recent photoproduction data obtained by the SAPHIR, SPring-8,\nand CLAS groups are included into the calculations. The main resonance\ncontributions to the process stem from the $S_{11}(1650)$, $P_{13}(1720)$, and\n$P_{13}(1900)$ states. The second bump at 1.9 GeV seen in the photoproduction\ncross section data is described as a coherent sum of the resonance and\nbackground contributions. The prediction for the beam polarization observable\nis presented.",
"arxiv_id": "nucl-th/0505010",
"authors": [
"V. Shklyar",
"H. Lenske",
"U. Mosel"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.72.015210",
"journal_ref": "Phys.Rev.C72:015210,2005",
"title": "A coupled-channel analysis of $K\\Lambda$ production in the nucleon resonance region",
"url": "https://arxiv.org/abs/nucl-th/0505010"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "a74aabf2-aaef-464a-8d94-b24a952cebe4",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}