dorsal/arxiv
View SchemaA study of cross sections for excitation of pseudostates
| Authors | Igor Bray |
|---|---|
| Categories | |
| ArXiv ID | physics/9904025 |
| URL | https://arxiv.org/abs/physics/9904025 |
| DOI | 10.1103/PhysRevA.60.5118 |
Abstract
Using the electron-hydrogen scattering Temkin-Poet model we investigate the behavior of the cross sections for excitation of all of the states used in the convergent close-coupling (CCC) formalism. In the triplet channel, it is found that the cross section for exciting the positive-energy states is approximately zero near-threshold and remains so until a further energy, equal to the energy of the state, is added to the system. This is consistent with the step-function hypothesis [Bray, Phys. Rev. Lett. {\bf 78} 4721 (1997)] and inconsistent with the expectations of Bencze and Chandler [Phys. Rev. A {\bf 59} 3129 (1999)]. Furthermore, we compare the results of the CCC-calculated triplet and singlet single differential cross sections with the recent benchmark results of Baertschy et al. [Phys. Rev. A (to be published)], and find consistent agreement.
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"abstract": "Using the electron-hydrogen scattering Temkin-Poet model we investigate the\nbehavior of the cross sections for excitation of all of the states used in the\nconvergent close-coupling (CCC) formalism. In the triplet channel, it is found\nthat the cross section for exciting the positive-energy states is approximately\nzero near-threshold and remains so until a further energy, equal to the energy\nof the state, is added to the system. This is consistent with the step-function\nhypothesis [Bray, Phys. Rev. Lett. {\\bf 78} 4721 (1997)] and inconsistent with\nthe expectations of Bencze and Chandler [Phys. Rev. A {\\bf 59} 3129 (1999)].\nFurthermore, we compare the results of the CCC-calculated triplet and singlet\nsingle differential cross sections with the recent benchmark results of\nBaertschy et al. [Phys. Rev. A (to be published)], and find consistent\nagreement.",
"arxiv_id": "physics/9904025",
"authors": [
"Igor Bray"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.60.5118",
"title": "A study of cross sections for excitation of pseudostates",
"url": "https://arxiv.org/abs/physics/9904025"
},
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