dorsal/arxiv
View SchemaNucleon Resonances in Kaon Photoproduction
| Authors | C. Bennhold, T. Mart, A. Waluyo, H. Haberzettl, G. Penner, T. Feuster, U. Mosel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9901066 |
| URL | https://arxiv.org/abs/nucl-th/9901066 |
Abstract
Nucleon resonances are investigated through the electromagnetic production of K-mesons. We study the kaon photoproduction process at tree-level and compare to a recently developed unitary K-matrix approach. Employing hadronic form factors along with the proper gauge prescription yields suppression of the Born terms and leads a resonance dominated process for both K-Lambda and K-Sigma photoproduction. Using new SAPHIR data we find the K+-Lambda photoproduction to be dominated by the S11(1650) at threshold, with additional contributions from the P11(1710) and P13(1720) states. The K-Sigma channel couples to a cluster of Delta resonances around W = 1900 MeV. We briefly discuss some tantalizing evidence for a missing D13 resonance around 1900 MeV with a strong branching ratio into KLambda channel.
{
"annotation_id": "b8208c5b-733f-4477-a719-4c80337686ee",
"date_created": "2026-03-02T18:00:25.699000Z",
"date_modified": "2026-03-02T18:00:25.699000Z",
"file_hash": "09ebb901e1a22fb450656e0d92d3376247679d011d2241e67b7f435a96417cc0",
"private": false,
"record": {
"abstract": "Nucleon resonances are investigated through the electromagnetic production of\nK-mesons. We study the kaon photoproduction process at tree-level and compare\nto a recently developed unitary K-matrix approach. Employing hadronic form\nfactors along with the proper gauge prescription yields suppression of the Born\nterms and leads a resonance dominated process for both K-Lambda and K-Sigma\nphotoproduction. Using new SAPHIR data we find the K+-Lambda photoproduction to\nbe dominated by the S11(1650) at threshold, with additional contributions from\nthe P11(1710) and P13(1720) states. The K-Sigma channel couples to a cluster of\nDelta resonances around W = 1900 MeV. We briefly discuss some tantalizing\nevidence for a missing D13 resonance around 1900 MeV with a strong branching\nratio into KLambda channel.",
"arxiv_id": "nucl-th/9901066",
"authors": [
"C. Bennhold",
"T. Mart",
"A. Waluyo",
"H. Haberzettl",
"G. Penner",
"T. Feuster",
"U. Mosel"
],
"categories": [
"nucl-th"
],
"title": "Nucleon Resonances in Kaon Photoproduction",
"url": "https://arxiv.org/abs/nucl-th/9901066"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8bd494f5-45b3-4812-af22-45ddfda14037",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}