| Autor: |
Cevad Selam, Necla Çakmak, Serdar Ünlü |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Popis: |
The nuclear matrix element for 2 ν β − β − decay is obtained by including the virtual contributions coming from the first-forbidden excitations in intermediate nuclei. The forbidden contributions are calculated within proton–neutron quasi-particle random phase approximation (pnQRPA) with the separable schematic effective interaction. We try to reproduce available experimental data concerning the first-forbidden excitations in intermediate nuclei. A comparison of the first-forbidden contributions with the allowed ones is given here. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
