Double electron capture cross-sections by protons in collisions with He
Double electron capture (DEC) by protons from He was studied in collisions at energies in the keV regime, theoretically and experimentally. Theoretical cross-sections were calculated using the electron nuclear dynamic approach and a binomial distribution method in the energy range 1-100 keV. Experim...
| Authors: | , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2009 |
| Country: | México |
| Institution: | Universidad Nacional Autónoma de México |
| Repository: | Sistema de Información de la Facultad de Ciencias, UNAM |
| OAI Identifier: | oai:repositorio.fciencias.unam.mx:11154/866 |
| Online Access: | http://hdl.handle.net/11154/13982766 |
| Access Level: | Open access |
| Keyword: | Nuclear Science & Technology Physics, Condensed Matter double electron capture collisions with protons intermediate energy interactions electron nuclear dynamics ENDyne binomial approximation |
| Summary: | Double electron capture (DEC) by protons from He was studied in collisions at energies in the keV regime, theoretically and experimentally. Theoretical cross-sections were calculated using the electron nuclear dynamic approach and a binomial distribution method in the energy range 1-100 keV. Experimental cross-sections were measured by means of the grow-rate method in the energy range of 4-10 keV. The cross-sections measured are consistent with those of the previous data at the high energies of the measured interval and show a different trend for the low energy. This behavior is consistent with those of other DEC cross-sections measured by protons from He-like targets. With the two collision models, it is proven that the reference data for this system are consistent only with the assumption of uncorrelated electrons and with independent target-projectile nuclei dynamics. |
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