Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198

A detailed study of the 0.962-MeV transition from the decay of Au198 is performed. A complete description of the theoretical formalism employed is given. Two sets of nuclear matrix elements have been extracted from the experimental data. In one of them the moment of multipolarity =2 is of the same o...

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Autores principales: Bosch, Horacio Ernesto, Cambiaggio de Questa, María Cristina, Szybisz, Leszek
Publicado: 1973
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v7_n2_p760_Bosch
http://hdl.handle.net/20.500.12110/paper_05562813_v7_n2_p760_Bosch
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_05562813_v7_n2_p760_Bosch2023-06-08T15:41:56Z Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198 Bosch, Horacio Ernesto Cambiaggio de Questa, María Cristina Szybisz, Leszek A detailed study of the 0.962-MeV transition from the decay of Au198 is performed. A complete description of the theoretical formalism employed is given. Two sets of nuclear matrix elements have been extracted from the experimental data. In one of them the moment of multipolarity =2 is of the same order of magnitude as those of multipolarities =0 and =1 and the ratio (=ir) is consistent with the Fujita-Eichler estimate [(FE)=2.4]. In the second case the moment of =2 is negligible and the ratio is strongly reduced with respect to (FE). A possible mechanism for the reduction of the moments from their single-particle values is discussed on the basis of a particle-plus-phonon coupling model. It is concluded that the state 2f52 is the dominant neutron single-particle configuration in the ground state of Au198. © 1973 The American Physical Society. Fil:Bosch, H.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cambiaggio, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Szybisz, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1973 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v7_n2_p760_Bosch http://hdl.handle.net/20.500.12110/paper_05562813_v7_n2_p760_Bosch
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A detailed study of the 0.962-MeV transition from the decay of Au198 is performed. A complete description of the theoretical formalism employed is given. Two sets of nuclear matrix elements have been extracted from the experimental data. In one of them the moment of multipolarity =2 is of the same order of magnitude as those of multipolarities =0 and =1 and the ratio (=ir) is consistent with the Fujita-Eichler estimate [(FE)=2.4]. In the second case the moment of =2 is negligible and the ratio is strongly reduced with respect to (FE). A possible mechanism for the reduction of the moments from their single-particle values is discussed on the basis of a particle-plus-phonon coupling model. It is concluded that the state 2f52 is the dominant neutron single-particle configuration in the ground state of Au198. © 1973 The American Physical Society.
author Bosch, Horacio Ernesto
Cambiaggio de Questa, María Cristina
Szybisz, Leszek
spellingShingle Bosch, Horacio Ernesto
Cambiaggio de Questa, María Cristina
Szybisz, Leszek
Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198
author_facet Bosch, Horacio Ernesto
Cambiaggio de Questa, María Cristina
Szybisz, Leszek
author_sort Bosch, Horacio Ernesto
title Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198
title_short Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198
title_full Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198
title_fullStr Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198
title_full_unstemmed Investigation of the nonunique first-forbidden decay. I. Analysis of the 2-(0.962 MeV)2+ transition in Au198
title_sort investigation of the nonunique first-forbidden decay. i. analysis of the 2-(0.962 mev)2+ transition in au198
publishDate 1973
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v7_n2_p760_Bosch
http://hdl.handle.net/20.500.12110/paper_05562813_v7_n2_p760_Bosch
work_keys_str_mv AT boschhoracioernesto investigationofthenonuniquefirstforbiddendecayianalysisofthe20962mev2transitioninau198
AT cambiaggiodequestamariacristina investigationofthenonuniquefirstforbiddendecayianalysisofthe20962mev2transitioninau198
AT szybiszleszek investigationofthenonuniquefirstforbiddendecayianalysisofthe20962mev2transitioninau198
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