dorsal/arxiv
View Schema7Be breakup on heavy and light targets
| Authors | N. C. Summers, F. M. Nunes |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0407040 |
| URL | https://arxiv.org/abs/nucl-th/0407040 |
| DOI | 10.1103/PhysRevC.70.011602 |
| Journal | Phys.Rev. C70 (2004) 011602 |
Abstract
In this paper we present all-order quantum mechanical calculations of 7Be breakup on heavy (208Pb) and light (12C) targets. We examine the issues concerning the extraction of the astrophysical S-factor from the breakup data. We discuss the interplay between Coulomb and nuclear breakup, and the importance of higher-order couplings on the cross section. We show that nuclear and Coulomb contributions are not separable using the standard angular selection criterion as nuclear breakup remains large for small scattering angles, even for the heavy target. However, by selecting an upper limit on the relative energy between the final fragments, the contribution from the nuclear breakup can be significantly reduced such that Coulomb breakup is the main reaction mechanism. We show that the extraction of the asymptotic normalization coefficient may require more careful consideration of the nuclear interior than previously used.
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"abstract": "In this paper we present all-order quantum mechanical calculations of 7Be\nbreakup on heavy (208Pb) and light (12C) targets. We examine the issues\nconcerning the extraction of the astrophysical S-factor from the breakup data.\nWe discuss the interplay between Coulomb and nuclear breakup, and the\nimportance of higher-order couplings on the cross section. We show that nuclear\nand Coulomb contributions are not separable using the standard angular\nselection criterion as nuclear breakup remains large for small scattering\nangles, even for the heavy target. However, by selecting an upper limit on the\nrelative energy between the final fragments, the contribution from the nuclear\nbreakup can be significantly reduced such that Coulomb breakup is the main\nreaction mechanism. We show that the extraction of the asymptotic normalization\ncoefficient may require more careful consideration of the nuclear interior than\npreviously used.",
"arxiv_id": "nucl-th/0407040",
"authors": [
"N. C. Summers",
"F. M. Nunes"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.70.011602",
"journal_ref": "Phys.Rev. C70 (2004) 011602",
"title": "7Be breakup on heavy and light targets",
"url": "https://arxiv.org/abs/nucl-th/0407040"
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