Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region

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High-spin states of doubly odd 218Ac1129 have been investigated using in-beam α, γ and conversion electron spectroscopy techniques through the 209Bi(12(13)C,3(4)n) fusion-evaporation reactions. The level scheme of 218Ac shows three interconnected, alternating parity structures, each one linked by st...

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Autores principales: Debray, M.E., Kreiner, A.J., Davidson, M., Davidson, J., Hojman, D., Santos, D., Vanin, V.R., Schulz, N., Aiche, M., Chevallier, A., Chevallier, J., Sens, J.C.
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03759474_v568_n1_p141_Debray
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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_03759474_v568_n1_p141_Debray2023-10-03T15:30:44Z Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region Debray, M.E. Kreiner, A.J. Davidson, M. Davidson, J. Hojman, D. Santos, D. Vanin, V.R. Schulz, N. Aiche, M. Chevallier, A. Chevallier, J. Sens, J.C. High-spin states of doubly odd 218Ac1129 have been investigated using in-beam α, γ and conversion electron spectroscopy techniques through the 209Bi(12(13)C,3(4)n) fusion-evaporation reactions. The level scheme of 218Ac shows three interconnected, alternating parity structures, each one linked by strong El transitions. Two of these bands are strikingly similar to the known scheme of the isotone 217Ra and this analogy is shown to persist for the pair 220Ac, 219Ra. The relation between the structure of 218Ac and its neighbors is thoroughly discussed showing that the first signals of octupole collectivity appear for N = 129. © 1994. Fil:Debray, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kreiner, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Davidson, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Davidson, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hojman, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03759474_v568_n1_p141_Debray
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description High-spin states of doubly odd 218Ac1129 have been investigated using in-beam α, γ and conversion electron spectroscopy techniques through the 209Bi(12(13)C,3(4)n) fusion-evaporation reactions. The level scheme of 218Ac shows three interconnected, alternating parity structures, each one linked by strong El transitions. Two of these bands are strikingly similar to the known scheme of the isotone 217Ra and this analogy is shown to persist for the pair 220Ac, 219Ra. The relation between the structure of 218Ac and its neighbors is thoroughly discussed showing that the first signals of octupole collectivity appear for N = 129. © 1994.
format JOUR
author Debray, M.E.
Kreiner, A.J.
Davidson, M.
Davidson, J.
Hojman, D.
Santos, D.
Vanin, V.R.
Schulz, N.
Aiche, M.
Chevallier, A.
Chevallier, J.
Sens, J.C.
spellingShingle Debray, M.E.
Kreiner, A.J.
Davidson, M.
Davidson, J.
Hojman, D.
Santos, D.
Vanin, V.R.
Schulz, N.
Aiche, M.
Chevallier, A.
Chevallier, J.
Sens, J.C.
Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region
author_facet Debray, M.E.
Kreiner, A.J.
Davidson, M.
Davidson, J.
Hojman, D.
Santos, D.
Vanin, V.R.
Schulz, N.
Aiche, M.
Chevallier, A.
Chevallier, J.
Sens, J.C.
author_sort Debray, M.E.
title Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region
title_short Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region
title_full Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region
title_fullStr Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region
title_full_unstemmed Alternating parity bands in doubly odd 218Ac129 and octupole instability in the light actinide region
title_sort alternating parity bands in doubly odd 218ac129 and octupole instability in the light actinide region
url http://hdl.handle.net/20.500.12110/paper_03759474_v568_n1_p141_Debray
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AT kreineraj alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
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AT davidsonj alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
AT hojmand alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
AT santosd alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
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AT schulzn alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
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AT chevalliera alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
AT chevallierj alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
AT sensjc alternatingparitybandsindoublyodd218ac129andoctupoleinstabilityinthelightactinideregion
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