dorsal/arxiv
View SchemaLow-lying continuum structures in B8 and Li8 in a microscopic model
| Authors | Attila Csoto |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9908081 |
| URL | https://arxiv.org/abs/nucl-th/9908081 |
| DOI | 10.1103/PhysRevC.61.024311 |
| Journal | Phys.Rev. C61 (2000) 024311 |
Abstract
We search for low-lying resonances in the B8 and Li8 nuclei using a microscopic cluster model and a variational scattering method, which is analytically continued to complex energies. After fine-tuning the nucleon-nucleon interaction to get the known 1+ state of B8 at the right energy, we reproduce the known spectra of the studied nuclei. In addition, our model predicts a 1+ state at 1.3 MeV in B8, relative to the Be7+p threshold, whose corresponding pair is situated right at the Li7+n threshold in Li8. Lacking any experimental evidence for the existence of such states, it is presently uncertain whether these structures really exist or they are spurious resonances in our model. We demonstrate that the predicted state in B8, if it exists, would have important consequences for the understanding of the astrophysically important Be7(p,gamma)B8 reaction.
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"abstract": "We search for low-lying resonances in the B8 and Li8 nuclei using a\nmicroscopic cluster model and a variational scattering method, which is\nanalytically continued to complex energies. After fine-tuning the\nnucleon-nucleon interaction to get the known 1+ state of B8 at the right\nenergy, we reproduce the known spectra of the studied nuclei. In addition, our\nmodel predicts a 1+ state at 1.3 MeV in B8, relative to the Be7+p threshold,\nwhose corresponding pair is situated right at the Li7+n threshold in Li8.\nLacking any experimental evidence for the existence of such states, it is\npresently uncertain whether these structures really exist or they are spurious\nresonances in our model. We demonstrate that the predicted state in B8, if it\nexists, would have important consequences for the understanding of the\nastrophysically important Be7(p,gamma)B8 reaction.",
"arxiv_id": "nucl-th/9908081",
"authors": [
"Attila Csoto"
],
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"nucl-th",
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],
"doi": "10.1103/PhysRevC.61.024311",
"journal_ref": "Phys.Rev. C61 (2000) 024311",
"title": "Low-lying continuum structures in B8 and Li8 in a microscopic model",
"url": "https://arxiv.org/abs/nucl-th/9908081"
},
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