Two-photon double ionization of helium in the region of photon energies 42-50 eV
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2006
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| _version_ | 1866912932646879232 |
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| author | Ivanov, I. A. Kheifets, A. S. |
| author_facet | Ivanov, I. A. Kheifets, A. S. |
| contents | We report the total integrated cross-section (TICS) of two-photon double ionization of helium in the photon energy range from 42 to 50 eV. Our computational procedure relies on a numerical solution of the time-dependent Schrödinger equation on a square-integrable basis and subsequent projection of this solution on a set of final states describing two electrons in continuum. Close to the threshold, we reproduce results previously known from the literature. The region 47-50 eV seems to have been previously unexplored. Our results suggest that TICS, as a function of the photon energy, grows monotonously in the region 42-50 eV. We also present fully resolved triple differential cross sections for selected photon energies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_physics_0612093 |
| institution | arXiv |
| publishDate | 2006 |
| record_format | arxiv |
| spellingShingle | Two-photon double ionization of helium in the region of photon energies 42-50 eV Ivanov, I. A. Kheifets, A. S. Atomic and Molecular Clusters Atomic Physics We report the total integrated cross-section (TICS) of two-photon double ionization of helium in the photon energy range from 42 to 50 eV. Our computational procedure relies on a numerical solution of the time-dependent Schrödinger equation on a square-integrable basis and subsequent projection of this solution on a set of final states describing two electrons in continuum. Close to the threshold, we reproduce results previously known from the literature. The region 47-50 eV seems to have been previously unexplored. Our results suggest that TICS, as a function of the photon energy, grows monotonously in the region 42-50 eV. We also present fully resolved triple differential cross sections for selected photon energies. |
| title | Two-photon double ionization of helium in the region of photon energies 42-50 eV |
| topic | Atomic and Molecular Clusters Atomic Physics |
| url | https://arxiv.org/abs/physics/0612093 |