Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei

In even-even Zr nuclei, with the neutron number increasing from N=56 on, a steady lowering of the first excited 0+ state is observed. This excited 0+ state has been mainly related to the proton excitation across the Z=40 subshell. Starting from the shell-model matrix element, connecting the (2p1/2)2...

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Autores principales: Heyde, K., Kirchuk, E.D., Federman, P.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_05562813_v38_n2_p984_Heyde
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_05562813_v38_n2_p984_Heyde2023-10-03T15:34:36Z Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei Heyde, K. Kirchuk, E.D. Federman, P. In even-even Zr nuclei, with the neutron number increasing from N=56 on, a steady lowering of the first excited 0+ state is observed. This excited 0+ state has been mainly related to the proton excitation across the Z=40 subshell. Starting from the shell-model matrix element, connecting the (2p1/2)20+ and (1g9/2)20+ configurations in Zr90, we point out that a large reduction in the coupling matrix element is needed to explain the very low 0+ excitation energy at N=58, N=60. This reduction is calculated, starting from the matrix element connecting the spherical valence neutron configuration and a Nilsson model deformed wave function describing the neutron component. © 1988 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05562813_v38_n2_p984_Heyde
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description In even-even Zr nuclei, with the neutron number increasing from N=56 on, a steady lowering of the first excited 0+ state is observed. This excited 0+ state has been mainly related to the proton excitation across the Z=40 subshell. Starting from the shell-model matrix element, connecting the (2p1/2)20+ and (1g9/2)20+ configurations in Zr90, we point out that a large reduction in the coupling matrix element is needed to explain the very low 0+ excitation energy at N=58, N=60. This reduction is calculated, starting from the matrix element connecting the spherical valence neutron configuration and a Nilsson model deformed wave function describing the neutron component. © 1988 The American Physical Society.
format JOUR
author Heyde, K.
Kirchuk, E.D.
Federman, P.
spellingShingle Heyde, K.
Kirchuk, E.D.
Federman, P.
Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei
author_facet Heyde, K.
Kirchuk, E.D.
Federman, P.
author_sort Heyde, K.
title Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei
title_short Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei
title_full Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei
title_fullStr Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei
title_full_unstemmed Coexistence or strong-mixing of intruder 0+ states in even-even Zr nuclei
title_sort coexistence or strong-mixing of intruder 0+ states in even-even zr nuclei
url http://hdl.handle.net/20.500.12110/paper_05562813_v38_n2_p984_Heyde
work_keys_str_mv AT heydek coexistenceorstrongmixingofintruder0statesinevenevenzrnuclei
AT kirchuked coexistenceorstrongmixingofintruder0statesinevenevenzrnuclei
AT federmanp coexistenceorstrongmixingofintruder0statesinevenevenzrnuclei
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