Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions

The formalism of the quasiparticle random phase approximation, extended to include scattering terms in the equation of motion, is used to describe allowed single β-decay transitions of Fermi type at finite temperatures. The calculations were performed by using a realistic single particle basis and a...

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Autores principales: Civitarese, Enrique Osvaldo, Hirsch, Jorge Gustavo, Montani, Fernando Fabián, Reboiro, Marta
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/160190
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spelling I19-R120-10915-1601902023-11-15T20:07:05Z http://sedici.unlp.edu.ar/handle/10915/160190 Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions Civitarese, Enrique Osvaldo Hirsch, Jorge Gustavo Montani, Fernando Fabián Reboiro, Marta 2000 2023-11-15T16:10:32Z en Física Fermi transitions finite temperatures quasiparticle random phase approximation The formalism of the quasiparticle random phase approximation, extended to include scattering terms in the equation of motion, is used to describe allowed single β-decay transitions of Fermi type at finite temperatures. The calculations were performed by using a realistic single particle basis and a separable two body interaction in the proton-neutron channel. The behavior of the Ikeda sum rule is studied and it is found that this sum rule is strictly conserved in the presence of particle-particle and hole-hole correlations. As an example on the validity of the formalism the case of Fermi transitions in ⁷⁶Ge is considered. Facultad de Ciencias Exactas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Fermi transitions
finite temperatures
quasiparticle random phase approximation
spellingShingle Física
Fermi transitions
finite temperatures
quasiparticle random phase approximation
Civitarese, Enrique Osvaldo
Hirsch, Jorge Gustavo
Montani, Fernando Fabián
Reboiro, Marta
Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions
topic_facet Física
Fermi transitions
finite temperatures
quasiparticle random phase approximation
description The formalism of the quasiparticle random phase approximation, extended to include scattering terms in the equation of motion, is used to describe allowed single β-decay transitions of Fermi type at finite temperatures. The calculations were performed by using a realistic single particle basis and a separable two body interaction in the proton-neutron channel. The behavior of the Ikeda sum rule is studied and it is found that this sum rule is strictly conserved in the presence of particle-particle and hole-hole correlations. As an example on the validity of the formalism the case of Fermi transitions in ⁷⁶Ge is considered.
format Articulo
Articulo
author Civitarese, Enrique Osvaldo
Hirsch, Jorge Gustavo
Montani, Fernando Fabián
Reboiro, Marta
author_facet Civitarese, Enrique Osvaldo
Hirsch, Jorge Gustavo
Montani, Fernando Fabián
Reboiro, Marta
author_sort Civitarese, Enrique Osvaldo
title Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions
title_short Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions
title_full Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions
title_fullStr Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions
title_full_unstemmed Extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay Fermi transitions
title_sort extended quasiparticle random phase approximation at finite temperatures: calculation of single β-decay fermi transitions
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/160190
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AT montanifernandofabian extendedquasiparticlerandomphaseapproximationatfinitetemperaturescalculationofsinglebdecayfermitransitions
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