Excited States of Positronic Lithium and Beryllium
| dc.contributor.author | Bubin, Sergiy | |
| dc.contributor.author | Prezhdo, Oleg V. | |
| dc.date.accessioned | 2016-01-29T05:27:28Z | |
| dc.date.available | 2016-01-29T05:27:28Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | Using a variational method with an explicitly correlated Gaussian basis, we study the eþ-Li and eþ-Be complexes in the ground and lowest excited states with higher spin multiplicity. Our calculations provide rigorous theoretical confirmation that a positron can be attached to the excited states: 1s2s2p 4Po and 1s22s2p 3Po for eþ-Li and eþ-Be, respectively. The result is particularly notable for the eþ-Be complex, as the excited 3Po state lies below the autoionization threshold. We report accurate binding energies, annihilation rates and structural properties of these positron-atom systems. The existence of the ground and metastable excited states with bound positron opens up a new route to the presently lacking experimental verification of stability of a positron binding to any neutral atom | ru_RU |
| dc.identifier.citation | Sergiy Bubin, Oleg V. Prezhdo; 2013; Excited States of Positronic Lithium and Beryllium; PHYSICAL REVIEW LETTERS | ru_RU |
| dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/1091 | |
| dc.language.iso | en | ru_RU |
| dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
| dc.subject | Research Subject Categories::NATURAL SCIENCES::Physics | ru_RU |
| dc.subject | Positronic Lithium | ru_RU |
| dc.subject | Beryllium | ru_RU |
| dc.title | Excited States of Positronic Lithium and Beryllium | ru_RU |
| dc.type | Article | ru_RU |