dorsal/arxiv
View SchemaOn the possibility of eta-mesic nucleus formation
| Authors | S. A. Sofianos, S. A. Rakityansky |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9707044 |
| URL | https://arxiv.org/abs/nucl-th/9707044 |
Abstract
A microscopic treatment of eta-nucleus system is presented. Using this, the poles of the amplitude describing elastic scattering of eta-meson off the light nuclei ^2H, ^3H, ^3He, and ^4He have been located in the second quadrant of the complex plane of the eta-nucleus relative momentum. The results obtained indicate that, within the existing uncertainties in the eta-Nucleon input data, a bound state could exist. By a qualitative consideration it is shown that such bound-states, cannot be narrow. It is further shown that scattering length calculations cannot provide a definite answer on the question concerning the existence of eta-nucleus bound states.
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"date_created": "2026-03-02T18:00:19.109000Z",
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"abstract": "A microscopic treatment of eta-nucleus system is presented. Using this, the\npoles of the amplitude describing elastic scattering of eta-meson off the light\nnuclei ^2H, ^3H, ^3He, and ^4He have been located in the second quadrant of the\ncomplex plane of the eta-nucleus relative momentum. The results obtained\nindicate that, within the existing uncertainties in the eta-Nucleon input data,\na bound state could exist. By a qualitative consideration it is shown that such\nbound-states, cannot be narrow. It is further shown that scattering length\ncalculations cannot provide a definite answer on the question concerning the\nexistence of eta-nucleus bound states.",
"arxiv_id": "nucl-th/9707044",
"authors": [
"S. A. Sofianos",
"S. A. Rakityansky"
],
"categories": [
"nucl-th"
],
"title": "On the possibility of eta-mesic nucleus formation",
"url": "https://arxiv.org/abs/nucl-th/9707044"
},
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