dorsal/arxiv
View SchemaE2 component in subcoulomb breakup of ^{8}B
| Authors | R. Shyam, I. J. Thompson |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9611054 |
| URL | https://arxiv.org/abs/nucl-th/9611054 |
| DOI | 10.1016/S0370-2693(97)01272-0 |
| Journal | Phys.Lett. B415 (1997) 315-320 |
Abstract
We calculate the angular distribution and total cross section of the ^{7}Be fragment emitted in the break up reaction of ^{8}B on ^{58}Ni and ^{208}Pb targets at the subCoulomb beam energy of 25.8 MeV, within the non-relativistic theory of Coulomb excitation with proper three-body kinematics. The relative contributions of the E1, E2 and M1 multipolarities to the cross sections are determined. The E2 component makes up about 65% and 40% of the ^{7}Be total cross section for the ^{58}Ni and ^{208}Pb targets respectively. We find that the extraction of the astrophysical S-factor, S_{17}(0), for the ^{7}Be(p,\gamma)^8B reaction at solar energies from the measurements of the cross sections of the ^{7}Be fragment in the Coulomb dissociation of ^{8}B at sub-Coulomb energies is still not free from the uncertainties of the E2 component.
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"abstract": "We calculate the angular distribution and total cross section of the ^{7}Be\nfragment emitted in the break up reaction of ^{8}B on ^{58}Ni and ^{208}Pb\ntargets at the subCoulomb beam energy of 25.8 MeV, within the non-relativistic\ntheory of Coulomb excitation with proper three-body kinematics. The relative\ncontributions of the E1, E2 and M1 multipolarities to the cross sections are\ndetermined. The E2 component makes up about 65% and 40% of the ^{7}Be total\ncross section for the ^{58}Ni and ^{208}Pb targets respectively. We find that\nthe extraction of the astrophysical S-factor, S_{17}(0), for the\n^{7}Be(p,\\gamma)^8B reaction at solar energies from the measurements of the\ncross sections of the ^{7}Be fragment in the Coulomb dissociation of ^{8}B at\nsub-Coulomb energies is still not free from the uncertainties of the E2\ncomponent.",
"arxiv_id": "nucl-th/9611054",
"authors": [
"R. Shyam",
"I. J. Thompson"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(97)01272-0",
"journal_ref": "Phys.Lett. B415 (1997) 315-320",
"title": "E2 component in subcoulomb breakup of ^{8}B",
"url": "https://arxiv.org/abs/nucl-th/9611054"
},
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