dorsal/arxiv
View SchemaAre spectroscopic factors from transfer reactions consistent with asymptotic normalisation coefficients?
| Authors | D. Y. Pang, F. M. Nunes, A. M. Mukhamedzhanov |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0701068 |
| URL | https://arxiv.org/abs/nucl-th/0701068 |
| DOI | 10.1103/PhysRevC.75.024601 |
| Journal | Phys.Rev.C75:024601,2007 |
Abstract
It is extremely important to devise a reliable method to extract spectroscopic factors from transfer cross sections. We analyse the standard DWBA procedure and combine it with the asymptotic normalisation coefficient, extracted from an independent data set. We find that the single particle parameters used in the past generate inconsistent asymptotic normalization coefficients. In order to obtain a consistent spectroscopic factor, non-standard parameters for the single particle overlap functions can be used but, as a consequence, often reduced spectroscopic strengths emerge. Different choices of optical potentials and higher order effects in the reaction model are also studied. Our test cases consist of: $^{14}$C(d,p)$^{15}$C(g.s.) at $E_d^{lab}=14$ MeV, $^{16}$O(d,p)$^{17}$O(g.s.) at $E_d^{lab}=15$ MeV and $^{40}$Ca(d,p)$^{41}$Ca(g.s.) at $E_d^{lab}=11$ MeV. We underline the importance of performing experiments specifically designed to extract ANCs for these systems.
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"abstract": "It is extremely important to devise a reliable method to extract\nspectroscopic factors from transfer cross sections. We analyse the standard\nDWBA procedure and combine it with the asymptotic normalisation coefficient,\nextracted from an independent data set. We find that the single particle\nparameters used in the past generate inconsistent asymptotic normalization\ncoefficients. In order to obtain a consistent spectroscopic factor,\nnon-standard parameters for the single particle overlap functions can be used\nbut, as a consequence, often reduced spectroscopic strengths emerge. Different\nchoices of optical potentials and higher order effects in the reaction model\nare also studied. Our test cases consist of: $^{14}$C(d,p)$^{15}$C(g.s.) at\n$E_d^{lab}=14$ MeV, $^{16}$O(d,p)$^{17}$O(g.s.) at $E_d^{lab}=15$ MeV and\n$^{40}$Ca(d,p)$^{41}$Ca(g.s.) at $E_d^{lab}=11$ MeV. We underline the\nimportance of performing experiments specifically designed to extract ANCs for\nthese systems.",
"arxiv_id": "nucl-th/0701068",
"authors": [
"D. Y. Pang",
"F. M. Nunes",
"A. M. Mukhamedzhanov"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.75.024601",
"journal_ref": "Phys.Rev.C75:024601,2007",
"title": "Are spectroscopic factors from transfer reactions consistent with asymptotic normalisation coefficients?",
"url": "https://arxiv.org/abs/nucl-th/0701068"
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