dorsal/arxiv
View SchemaResonances in $\Lambda d$ Scattering and the $\Sigma$-hypertriton
| Authors | I. R. Afnan, B. F. Gibson |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9210005 |
| URL | https://arxiv.org/abs/nucl-th/9210005 |
| DOI | 10.1103/PhysRevC.47.1000 |
Abstract
Using separable $NN$ and $\Lambda N$-$\Sigma N$ potentials in the Faddeev equations, we have demonstrated that the predicted enhancement in the $\Lambda d$ cross section near the $\Sigma d$ threshold is associated with resonance poles in the scattering amplitude. The positions of these poles, on the second Riemann sheet of the complex energy plane, are determined by examining the eigenvalues of the kernel of the Faddeev equations. This suggests that for a certain class of $\Lambda N$-$\Sigma N$ potentials we can form a $\Sigma$-hypertriton with a width of about 8 MeV.
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"abstract": "Using separable $NN$ and $\\Lambda N$-$\\Sigma N$ potentials in the Faddeev\nequations, we have demonstrated that the predicted enhancement in the $\\Lambda\nd$ cross section near the $\\Sigma d$ threshold is associated with resonance\npoles in the scattering amplitude. The positions of these poles, on the second\nRiemann sheet of the complex energy plane, are determined by examining the\neigenvalues of the kernel of the Faddeev equations. This suggests that for a\ncertain class of $\\Lambda N$-$\\Sigma N$ potentials we can form a\n$\\Sigma$-hypertriton with a width of about 8 MeV.",
"arxiv_id": "nucl-th/9210005",
"authors": [
"I. R. Afnan",
"B. F. Gibson"
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"doi": "10.1103/PhysRevC.47.1000",
"title": "Resonances in $\\Lambda d$ Scattering and the $\\Sigma$-hypertriton",
"url": "https://arxiv.org/abs/nucl-th/9210005"
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