High-spin structure of normal-deformed bands in Zr-84
(2003) In Physical Review C: covering nuclear physics 68. p.1-024303- Abstract
- The reaction Ni-58(S-32,alpha2p) at E-lab=135 MeV was used to populate high-spin states in Zr-84. The complete GAMMASPHERE and MICROBALL arrays were used to obtain clean gamma-gamma-gamma line shapes to be analyzed by the Doppler shift attenuation method and to determine 27 lifetimes in the ground-state band and in two excited bands. Side-feeding times were also measured by comparing the line shapes gated with transitions above and below the state under study. The deduced electric quadrupole moments for the ground-state band are consistent with a very slow reduction with frequency with values ranging between 2.4(3) and 2.0(1)e b. The negative-parity bands feature also an approximate constancy of quadrupole moment with values similar to... (More)
- The reaction Ni-58(S-32,alpha2p) at E-lab=135 MeV was used to populate high-spin states in Zr-84. The complete GAMMASPHERE and MICROBALL arrays were used to obtain clean gamma-gamma-gamma line shapes to be analyzed by the Doppler shift attenuation method and to determine 27 lifetimes in the ground-state band and in two excited bands. Side-feeding times were also measured by comparing the line shapes gated with transitions above and below the state under study. The deduced electric quadrupole moments for the ground-state band are consistent with a very slow reduction with frequency with values ranging between 2.4(3) and 2.0(1)e b. The negative-parity bands feature also an approximate constancy of quadrupole moment with values similar to those in the ground-state band. Cranking calculations agree with this behavior in both parity bands and suggest an interpretation of the upper states in the ground-state band as part of a very slowly terminating band. Shell-dependent cranked Nilsson calculations explain a fourth gamma cascade as pertaining to a noncollective structure terminating at I=20(+). (Less)
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https://lup.lub.lu.se/record/700072
- author
- Cardona, R. ; Christiancho, F. ; Tabor, S.L. ; Ragnarsson, Ingemar LU and al., et
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C: covering nuclear physics
- volume
- 68
- pages
- 1 - 024303
- publisher
- American Physical Society
- external identifiers
-
- wos:000185193000016
- scopus:85035299801
- DOI
- 10.1103/PhysRevC.68.024303
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- f134b3e5-c98f-4c4a-9d99-f6c5ced6191c (old id 700072)
- date added to LUP
- 2016-04-04 10:50:19
- date last changed
- 2022-04-23 23:42:03
@article{f134b3e5-c98f-4c4a-9d99-f6c5ced6191c,
abstract = {{The reaction Ni-58(S-32,alpha2p) at E-lab=135 MeV was used to populate high-spin states in Zr-84. The complete GAMMASPHERE and MICROBALL arrays were used to obtain clean gamma-gamma-gamma line shapes to be analyzed by the Doppler shift attenuation method and to determine 27 lifetimes in the ground-state band and in two excited bands. Side-feeding times were also measured by comparing the line shapes gated with transitions above and below the state under study. The deduced electric quadrupole moments for the ground-state band are consistent with a very slow reduction with frequency with values ranging between 2.4(3) and 2.0(1)e b. The negative-parity bands feature also an approximate constancy of quadrupole moment with values similar to those in the ground-state band. Cranking calculations agree with this behavior in both parity bands and suggest an interpretation of the upper states in the ground-state band as part of a very slowly terminating band. Shell-dependent cranked Nilsson calculations explain a fourth gamma cascade as pertaining to a noncollective structure terminating at I=20(+).}},
author = {{Cardona, R. and Christiancho, F. and Tabor, S.L. and Ragnarsson, Ingemar and al., et}},
language = {{eng}},
pages = {{1--024303}},
publisher = {{American Physical Society}},
series = {{Physical Review C: covering nuclear physics}},
title = {{High-spin structure of normal-deformed bands in Zr-84}},
url = {{http://dx.doi.org/10.1103/PhysRevC.68.024303}},
doi = {{10.1103/PhysRevC.68.024303}},
volume = {{68}},
year = {{2003}},
}