Abstract
High spin states of {sup 164}Yb have been populated using the {sup 152}Sm ({sup 16}O, 4n) reaction. The experiment was performed at the NORDBALL array at Risoe, Denmark. A total of 15 decay cascades have been observed. A method has been developed to measure multipolarities and mixing ratios using angular correlations in two-fold {gamma} events. Results are presented for some interband transitions in {sup 164}Yb. The method can be applied to any detector array, but has proven particularly useful in the NORDBALL array, which has a favourable detector symmetry. In order to interpret the experimentally observed bands, extensive Cranked Shell Model calculations have been performed for all quasiparticle configurations within an energy limit from the yrast line. The concept of quasiparticles causes spurious states to appear, when calculating large numbers of bands. The reasons behind these non-physical states have been studied and the number of non-physical states compared to the number of physical states has been estimated. 28 refs, 27 figs.
Citation Formats
Nordlund, A.
Mapping the structure of rotating nuclei.
Sweden: N. p.,
1994.
Web.
Nordlund, A.
Mapping the structure of rotating nuclei.
Sweden.
Nordlund, A.
1994.
"Mapping the structure of rotating nuclei."
Sweden.
@misc{etde_10123007,
title = {Mapping the structure of rotating nuclei}
author = {Nordlund, A}
abstractNote = {High spin states of {sup 164}Yb have been populated using the {sup 152}Sm ({sup 16}O, 4n) reaction. The experiment was performed at the NORDBALL array at Risoe, Denmark. A total of 15 decay cascades have been observed. A method has been developed to measure multipolarities and mixing ratios using angular correlations in two-fold {gamma} events. Results are presented for some interband transitions in {sup 164}Yb. The method can be applied to any detector array, but has proven particularly useful in the NORDBALL array, which has a favourable detector symmetry. In order to interpret the experimentally observed bands, extensive Cranked Shell Model calculations have been performed for all quasiparticle configurations within an energy limit from the yrast line. The concept of quasiparticles causes spurious states to appear, when calculating large numbers of bands. The reasons behind these non-physical states have been studied and the number of non-physical states compared to the number of physical states has been estimated. 28 refs, 27 figs.}
place = {Sweden}
year = {1994}
month = {Dec}
}
title = {Mapping the structure of rotating nuclei}
author = {Nordlund, A}
abstractNote = {High spin states of {sup 164}Yb have been populated using the {sup 152}Sm ({sup 16}O, 4n) reaction. The experiment was performed at the NORDBALL array at Risoe, Denmark. A total of 15 decay cascades have been observed. A method has been developed to measure multipolarities and mixing ratios using angular correlations in two-fold {gamma} events. Results are presented for some interband transitions in {sup 164}Yb. The method can be applied to any detector array, but has proven particularly useful in the NORDBALL array, which has a favourable detector symmetry. In order to interpret the experimentally observed bands, extensive Cranked Shell Model calculations have been performed for all quasiparticle configurations within an energy limit from the yrast line. The concept of quasiparticles causes spurious states to appear, when calculating large numbers of bands. The reasons behind these non-physical states have been studied and the number of non-physical states compared to the number of physical states has been estimated. 28 refs, 27 figs.}
place = {Sweden}
year = {1994}
month = {Dec}
}