dorsal/arxiv
View SchemaTesting the nature of the $\Lambda(1520)$ resonance in proton-induced production
| Authors | L. Roca, C. Hanhart, E. Oset, Ulf-G. Meißner |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0602016 |
| URL | https://arxiv.org/abs/nucl-th/0602016 |
| DOI | 10.1140/epja/i2006-10009-9 |
| Journal | Eur.Phys.J. A27 (2006) 373-380 |
Abstract
The $\Lambda(1520)$ resonance has been recently studied in a unitarized coupled channel formalism with $\pi\Sigma(1385)$, $K\Xi(1530)$, $\bar{K}N$ and $\pi\Sigma$ as constituents blocks. We provide a theoretical study of the predictions of this model in physical observables of the $pp\to pK^+K^-p$ and $pp\to pK^+\pi^0\pi^0\Lambda$ reactions. In particular, we show that the ratio between the $\pi^0\pi^0\Lambda$ and $K^-p$ mass distributions can provide valuable information on the ratio of the couplings of the $\Lambda(1520)$ resonance to $\pi\Sigma(1385)$ and $\bar{K}N$ that the theory predicts. Calculations are done for energies which are accessible in an experimental facility like COSY at J\"ulich or the developing CSR facility at Lanzhou.
{
"annotation_id": "9182507f-0d50-448d-84de-4c72d586030b",
"date_created": "2026-03-02T18:00:07.843000Z",
"date_modified": "2026-03-02T18:00:07.843000Z",
"file_hash": "9647ea4679336249e10fee576b108d8b0e30d08d3ced8bbf12ab6bf3b1374786",
"private": false,
"record": {
"abstract": "The $\\Lambda(1520)$ resonance has been recently studied in a unitarized\ncoupled channel formalism with $\\pi\\Sigma(1385)$, $K\\Xi(1530)$, $\\bar{K}N$ and\n$\\pi\\Sigma$ as constituents blocks. We provide a theoretical study of the\npredictions of this model in physical observables of the $pp\\to pK^+K^-p$ and\n$pp\\to pK^+\\pi^0\\pi^0\\Lambda$ reactions. In particular, we show that the ratio\nbetween the $\\pi^0\\pi^0\\Lambda$ and $K^-p$ mass distributions can provide\nvaluable information on the ratio of the couplings of the $\\Lambda(1520)$\nresonance to $\\pi\\Sigma(1385)$ and $\\bar{K}N$ that the theory predicts.\nCalculations are done for energies which are accessible in an experimental\nfacility like COSY at J\\\"ulich or the developing CSR facility at Lanzhou.",
"arxiv_id": "nucl-th/0602016",
"authors": [
"L. Roca",
"C. Hanhart",
"E. Oset",
"Ulf-G. Mei\u00dfner"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1140/epja/i2006-10009-9",
"journal_ref": "Eur.Phys.J. A27 (2006) 373-380",
"title": "Testing the nature of the $\\Lambda(1520)$ resonance in proton-induced production",
"url": "https://arxiv.org/abs/nucl-th/0602016"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "f31b2412-e26d-4f28-b8fc-32e0fd38f9dd",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}