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Dynamic polarizabilities and van der Waals coefficients of the 2 (1)S and 2 (3)S metastable states of helium.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Rérat Caffarel Pouchan |
| Copyright Year | 1993 |
| Abstract | Collision processes involving excited atoms play an important role in many fields of physics including gas-laser physics, plasma physics, and upper-atmosphere physics [1]. Among these processes, an important one —which has been extensively studied —is the Penning-ionization process involving metastable helium. For the systems He(2'S and 2 S)-Hz, experimental data in the thermal [2—6] and superthermal [7] energy range have been reported. Qualitatively good agreement between experimental results and quantum-mechanical calculations based on an optical-potential model [8] and classical trajectory calculations [9,10] has shown that the dipoledipole interaction is the major contribution to the autoionization process at large interatomic distances [11]. However, although reliable values for the dipole-dipole |
| Starting Page | 161 |
| Ending Page | 165 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/physreva.48.161 |
| PubMed reference number | 9909584 |
| Journal | Medline |
| Volume Number | 48 |
| Issue Number | 1 |
| Alternate Webpage(s) | http://qmcchem.ups-tlse.fr/files/caffarel/Pol_Dyn_PRA_1993.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/physreva.48.161 |
| Journal | Physical review. A, Atomic, molecular, and optical physics |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
