The calculation of 2νββ matrix elements within the collective description
The problem of particles coupled by an isovector pairing interaction is solved by means of a collective treatment. The Hamiltonian and the beta-decay operators acting within the np-subspace are constructed. The procedure reproduces exact results for a schematic model. The realistic calculation of th...
| Autores: | , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | Argentina |
| Recursos: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/146440 |
| Acesso em linha: | http://sedici.unlp.edu.ar/handle/10915/146440 |
| Access Level: | acceso abierto |
| Palavra-chave: | Ciencias Exactas Física collective variables Fermi and Gamow–Teller transitions |
| Resumo: | The problem of particles coupled by an isovector pairing interaction is solved by means of a collective treatment. The Hamiltonian and the beta-decay operators acting within the np-subspace are constructed. The procedure reproduces exact results for a schematic model. The realistic calculation of the Fermi amplitude for the double-beta decay of ⁷⁶Ge confirms the current expectation about its smallness relative to the Gamow-Teller decay. |
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