dorsal/arxiv
View SchemaSensitivity to multi-phonon excitations in heavy-ion fusion reactions
| Authors | H. Esbensen |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0509008 |
| URL | https://arxiv.org/abs/nucl-th/0509008 |
| DOI | 10.1103/PhysRevC.72.054607 |
| Journal | Phys.Rev. C72 (2005) 054607 |
Abstract
Measured cross sections for the fusion of {64}Ni with {64}Ni, {74}Ge, and {100}Mo targets are analyzed in a coupled-channels approach. The data for the {64}Ni target above 0.1 mb are reproduced by including couplings to the low-lying 2^+ and 3^- states and the mutual and two-phonon excitations of these states. The calculations become more challenging as the fusing nuclei become softer and heavier, and excitations to multi-phonon states start to play an increasingly important role. Thus it is necessary to include up to four-phonon excitations in order to reproduce the data for the {64}Ni+{74}Ge system. Similar calculations for {64}Ni+{100}Mo, and also for the symmetric {74}Ge+{74}Ge system, show large discrepancies with the data. Possible ways to improve the calculations are discussed.
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"abstract": "Measured cross sections for the fusion of {64}Ni with {64}Ni, {74}Ge, and\n{100}Mo targets are analyzed in a coupled-channels approach. The data for the\n{64}Ni target above 0.1 mb are reproduced by including couplings to the\nlow-lying 2^+ and 3^- states and the mutual and two-phonon excitations of these\nstates. The calculations become more challenging as the fusing nuclei become\nsofter and heavier, and excitations to multi-phonon states start to play an\nincreasingly important role. Thus it is necessary to include up to four-phonon\nexcitations in order to reproduce the data for the {64}Ni+{74}Ge system.\nSimilar calculations for {64}Ni+{100}Mo, and also for the symmetric\n{74}Ge+{74}Ge system, show large discrepancies with the data. Possible ways to\nimprove the calculations are discussed.",
"arxiv_id": "nucl-th/0509008",
"authors": [
"H. Esbensen"
],
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],
"doi": "10.1103/PhysRevC.72.054607",
"journal_ref": "Phys.Rev. C72 (2005) 054607",
"title": "Sensitivity to multi-phonon excitations in heavy-ion fusion reactions",
"url": "https://arxiv.org/abs/nucl-th/0509008"
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