Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/64304| Type: | Artigo de Periódico |
| Title: | Vibrational excitation cross-section by positron impact: a wave-packet dynamics study |
| Authors: | Luis Argel Poveda Calviño Márcio Teixeira do Nascimento Varella José Rachid Mohallem |
| Abstract: | The vibrational excitation cross-section of a diatomic molecule by positron impact is obtained using wave-packet propagation techniques. The dynamics study was carried on a two- dimensional potential energy surface, which couples a hydrogenlike harmonic oscillator to a positron via a spherically symmetric correlation polarization potential. The cross-section for the excitation of the first vibrational mode is in good agreement with previous reports. Our model suggests that a positron couples to the target vibration by responding instantly to an interaction potential, which depends on the target vibrational coordinate. |
| Subject: | Positrons |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | https://doi.org/10.3390/atoms9030064 |
| URI: | http://hdl.handle.net/1843/64304 |
| Issue Date: | 2021 |
| metadata.dc.url.externa: | https://www.mdpi.com/2218-2004/9/3/64 |
| metadata.dc.relation.ispartof: | Atoms |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Vibrational Excitation Cross-Section by Positron Impact.pdf | 463.34 kB | Adobe PDF | View/Open |
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