dorsal/arxiv
View SchemaThe stopping of low energy ions in reactions of astrophysical interest
| Authors | C. A. Bertulani |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0401007 |
| URL | https://arxiv.org/abs/nucl-th/0401007 |
| DOI | 10.1143/PTPS.154.325 |
| Journal | Prog.Theor.Phys.Suppl. 154 (2004) 325-332 |
Abstract
he velocity dependence of the stopping power of swift protons and deuterons in low energy collisions with hydrogen and helium gas targets is investigated with the numerical solution of the time-dependent Schroedinger coupled-channels equations using molecular orbital wavefunctions. At low projectile energies the stopping is mainly due to nuclear stopping, charge exchange of the electron, and excitation of the lowest levels in the target. The second and third mechanisms dominate at E < 200 eV. At lower energies it is also shown that a threshold effect is responsible for a quick drop of the energy loss. This investigation sheds more light on the long standing electron screening problem in fusion reactions of astrophysical interest.
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"abstract": "he velocity dependence of the stopping power of swift protons and deuterons\nin low energy collisions with hydrogen and helium gas targets is investigated\nwith the numerical solution of the time-dependent Schroedinger coupled-channels\nequations using molecular orbital wavefunctions. At low projectile energies the\nstopping is mainly due to nuclear stopping, charge exchange of the electron,\nand excitation of the lowest levels in the target. The second and third\nmechanisms dominate at E \u003c 200 eV. At lower energies it is also shown that a\nthreshold effect is responsible for a quick drop of the energy loss. This\ninvestigation sheds more light on the long standing electron screening problem\nin fusion reactions of astrophysical interest.",
"arxiv_id": "nucl-th/0401007",
"authors": [
"C. A. Bertulani"
],
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"nucl-th"
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"doi": "10.1143/PTPS.154.325",
"journal_ref": "Prog.Theor.Phys.Suppl. 154 (2004) 325-332",
"title": "The stopping of low energy ions in reactions of astrophysical interest",
"url": "https://arxiv.org/abs/nucl-th/0401007"
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