dorsal/arxiv
View SchemaNuclear physics input for solar models
| Authors | Attila Csoto |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9712033 |
| URL | https://arxiv.org/abs/nucl-th/9712033 |
| Journal | Proceedings published by World Scientific, page 214 (1998) |
Abstract
We discuss microscopic cluster model descriptions of two solar nuclear reactions, Be7(p,gamma)B8 and He3(He3,2p)He4. The low-energy reaction cross section of Be7(p,gamma)B8, which determines the high-energy solar neutrino flux, is constrained by Be7 and B8 observables. Our results show that a small value of the zero-energy cross section is rather unlikely. In He3(He3,2p)He4 we study the effects of a possible virtual state on the cross section. Although, we have found no indication for such a state so far, its existence cannot be ruled out yet. We calculate the He3(He3,2p)He4 and H3(H3,2n)He4 cross sections in a continuum-discretized coupled channel approximation, and find a good general agreement with the data.
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"abstract": "We discuss microscopic cluster model descriptions of two solar nuclear\nreactions, Be7(p,gamma)B8 and He3(He3,2p)He4. The low-energy reaction cross\nsection of Be7(p,gamma)B8, which determines the high-energy solar neutrino\nflux, is constrained by Be7 and B8 observables. Our results show that a small\nvalue of the zero-energy cross section is rather unlikely. In He3(He3,2p)He4 we\nstudy the effects of a possible virtual state on the cross section. Although,\nwe have found no indication for such a state so far, its existence cannot be\nruled out yet. We calculate the He3(He3,2p)He4 and H3(H3,2n)He4 cross sections\nin a continuum-discretized coupled channel approximation, and find a good\ngeneral agreement with the data.",
"arxiv_id": "nucl-th/9712033",
"authors": [
"Attila Csoto"
],
"categories": [
"nucl-th",
"astro-ph",
"nucl-ex"
],
"journal_ref": "Proceedings published by World Scientific, page 214 (1998)",
"title": "Nuclear physics input for solar models",
"url": "https://arxiv.org/abs/nucl-th/9712033"
},
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