dorsal/arxiv
View SchemaNon perturbative chiral approach to s-wave \bar{K}N interactions
| Authors | E. Oset, A. Ramos |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9711022 |
| URL | https://arxiv.org/abs/nucl-th/9711022 |
| DOI | 10.1016/S0375-9474(98)00170-5 |
| Journal | Nucl.Phys. A635 (1998) 99-120 |
Abstract
The s-wave meson-nucleon interaction in the $S = -1$ sector is studied by means of coupled-channel Lippmann Schwinger equations, using the lowest order chiral Lagrangian and a cut off to regularize the loop integrals. The method reproduces succesfully the $\Lambda (1405)$ resonance and the $K^- p \to K^- p, \bar{K}^0 n, \pi^0 \Lambda, \pi^0 \Sigma, \pi^+ \Sigma^-, \pi^- \Sigma^+$ cross sections at low energies. The inclusion of the $\eta \Lambda, \eta \Sigma^0$ channels in the coupled system is found very important and allows a solution in terms of only the lowest order Lagrangian.
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"abstract": "The s-wave meson-nucleon interaction in the $S = -1$ sector is studied by\nmeans of coupled-channel Lippmann Schwinger equations, using the lowest order\nchiral Lagrangian and a cut off to regularize the loop integrals. The method\nreproduces succesfully the $\\Lambda (1405)$ resonance and the $K^- p \\to K^- p,\n\\bar{K}^0 n, \\pi^0 \\Lambda, \\pi^0 \\Sigma, \\pi^+ \\Sigma^-, \\pi^- \\Sigma^+$ cross\nsections at low energies. The inclusion of the $\\eta \\Lambda, \\eta \\Sigma^0$\nchannels in the coupled system is found very important and allows a solution in\nterms of only the lowest order Lagrangian.",
"arxiv_id": "nucl-th/9711022",
"authors": [
"E. Oset",
"A. Ramos"
],
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"nucl-th"
],
"doi": "10.1016/S0375-9474(98)00170-5",
"journal_ref": "Nucl.Phys. A635 (1998) 99-120",
"title": "Non perturbative chiral approach to s-wave \\bar{K}N interactions",
"url": "https://arxiv.org/abs/nucl-th/9711022"
},
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