dorsal/arxiv
View SchemaEvidence for two Lambda(1405) resonance states
| Authors | E. Oset, V. K. Magas, A. Ramos |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0512090 |
| URL | https://arxiv.org/abs/nucl-th/0512090 |
| DOI | 10.1063/1.2176491 |
Abstract
The $K^- p \to \pi^0 \pi^0 \Sigma^0$ reaction is studied within a chiral unitary model. The distribution of $\pi^0 \Sigma^0$ states forming the $\Lambda(1405)$ shows, in agreement with a recent experiment, a peak at 1420 MeV and a relatively narrow width of $\Gamma = 38$ MeV. We use these data in combination with those of the $\pi^- p \to K^0 \pi \Sigma$ reaction and elements of chiral unitary theory to prove that there are two $\Lambda(1405)$ states instead of one as so far assumed.
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"abstract": "The $K^- p \\to \\pi^0 \\pi^0 \\Sigma^0$ reaction is studied within a chiral\nunitary model. The distribution of $\\pi^0 \\Sigma^0$ states forming the\n$\\Lambda(1405)$ shows, in agreement with a recent experiment, a peak at 1420\nMeV and a relatively narrow width of $\\Gamma = 38$ MeV. We use these data in\ncombination with those of the $\\pi^- p \\to K^0 \\pi \\Sigma$ reaction and\nelements of chiral unitary theory to prove that there are two $\\Lambda(1405)$\nstates instead of one as so far assumed.",
"arxiv_id": "nucl-th/0512090",
"authors": [
"E. Oset",
"V. K. Magas",
"A. Ramos"
],
"categories": [
"nucl-th"
],
"doi": "10.1063/1.2176491",
"title": "Evidence for two Lambda(1405) resonance states",
"url": "https://arxiv.org/abs/nucl-th/0512090"
},
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