On improvements of Double Beta Decay using FQTDA Model

The Quasiparticle Tamm-Dancoff Approximation (QTDA) is applied to describe the nuclear double beta decay with two neutrinos. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA) are not present in the QTDA, as such as the ambiguity in treating the intermediary...

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Detalles Bibliográficos
Autores principales: Oliveira, L. de, Samana, Arturo Rodolfo, Krmpotić, Francisco, Mariano, Alejandro Edgardo, Barbero, César Alberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87042
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87042
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
spellingShingle Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
Oliveira, L. de
Samana, Arturo Rodolfo
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Barbero, César Alberto
On improvements of Double Beta Decay using FQTDA Model
topic_facet Ciencias Exactas
Física
Quasiparticle Tamm-Dancoff Approximation
double beta decay
description The Quasiparticle Tamm-Dancoff Approximation (QTDA) is applied to describe the nuclear double beta decay with two neutrinos. Several serious inconveniences found in the Quasiparticle Random Phase Approximation (QRPA) are not present in the QTDA, as such as the ambiguity in treating the intermediary states, and further approximations necessary for evaluation of the nuclear matrix elements (NMEs) or, the extreme sensitivity of NME with the ratio between the pn and pp + nn pairings. Some years ago, the decay <sup>48</sup>Ca → <sup>48</sup>Ti was discussed within the particle-hole limit of QTDA. We found some mismatch in the numerical calculations when the full QTDA was being implemented, and a new performance in the particle-hole limit of QTDA is required to guarantee the fidelity of the approximation.
format Articulo
Articulo
author Oliveira, L. de
Samana, Arturo Rodolfo
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Barbero, César Alberto
author_facet Oliveira, L. de
Samana, Arturo Rodolfo
Krmpotić, Francisco
Mariano, Alejandro Edgardo
Barbero, César Alberto
author_sort Oliveira, L. de
title On improvements of Double Beta Decay using FQTDA Model
title_short On improvements of Double Beta Decay using FQTDA Model
title_full On improvements of Double Beta Decay using FQTDA Model
title_fullStr On improvements of Double Beta Decay using FQTDA Model
title_full_unstemmed On improvements of Double Beta Decay using FQTDA Model
title_sort on improvements of double beta decay using fqtda model
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/87042
work_keys_str_mv AT oliveiralde onimprovementsofdoublebetadecayusingfqtdamodel
AT samanaarturorodolfo onimprovementsofdoublebetadecayusingfqtdamodel
AT krmpoticfrancisco onimprovementsofdoublebetadecayusingfqtdamodel
AT marianoalejandroedgardo onimprovementsofdoublebetadecayusingfqtdamodel
AT barberocesaralberto onimprovementsofdoublebetadecayusingfqtdamodel
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