dorsal/arxiv
View SchemaSensitivity of 8B breakup cross section to projectile structure in CDCC calculations
| Authors | N. C. Summers, F. M. Nunes |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0410109 |
| URL | https://arxiv.org/abs/nucl-th/0410109 |
| DOI | 10.1088/0954-3899/31/12/005 |
| Journal | J. Phys. G 31, 1437 (2005) |
Abstract
Given the Astrophysical interest of $^7$Be$(p,\gamma)^8$B, there have been several experiments applying the Coulomb dissociation method for extracting the capture rate. Measurements at Michigan State are dominated by $E1$ contributions but have a small $E2$ component. On the other hand, a lower energy measurement at Notre Dame has a much stronger $E2$ contribution. The expectation was that the two measurements would tie down the $E2$ and thus allow for an accurate extraction of the $E1$ relevant for the capture process. The aim of this brief report is to show that the $E2$ factor in breakup reactions does not translate into a scaling of the $E2$ contribution in the corresponding capture reaction. We show that changes to the $^8$B single particle parameters, which are directly related to the $E2$ component in the capture reaction, do not effect the corresponding breakup reactions, using the present reaction theory.
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"abstract": "Given the Astrophysical interest of $^7$Be$(p,\\gamma)^8$B, there have been\nseveral experiments applying the Coulomb dissociation method for extracting the\ncapture rate. Measurements at Michigan State are dominated by $E1$\ncontributions but have a small $E2$ component. On the other hand, a lower\nenergy measurement at Notre Dame has a much stronger $E2$ contribution. The\nexpectation was that the two measurements would tie down the $E2$ and thus\nallow for an accurate extraction of the $E1$ relevant for the capture process.\nThe aim of this brief report is to show that the $E2$ factor in breakup\nreactions does not translate into a scaling of the $E2$ contribution in the\ncorresponding capture reaction. We show that changes to the $^8$B single\nparticle parameters, which are directly related to the $E2$ component in the\ncapture reaction, do not effect the corresponding breakup reactions, using the\npresent reaction theory.",
"arxiv_id": "nucl-th/0410109",
"authors": [
"N. C. Summers",
"F. M. Nunes"
],
"categories": [
"nucl-th"
],
"doi": "10.1088/0954-3899/31/12/005",
"journal_ref": "J. Phys. G 31, 1437 (2005)",
"title": "Sensitivity of 8B breakup cross section to projectile structure in CDCC calculations",
"url": "https://arxiv.org/abs/nucl-th/0410109"
},
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