ALIGNMENT PROCESSES IN CS-119, CS-121 AND CS-123

NR 2015
Rotational band structures have been observed in the odd-A Cs isotopes 119Cs, 121Cs and 123Cs. The previously known bands have been extended to higher spin values and several new bands have been established. Alignments of both h11/2 protons and neutrons are seen. Of special interest are the alignment frequencies in the (tentative) [422]3/2+ and [404]9/2+ bands which indicate a configuration-dependent proton pairing. Furthermore, the variation of the interaction strength at the first band crossing in the h11/2 bands does not follow the standard cranked-shell-model predictions. This feature is in line with previous systematic observations of alignment processes in high-j intruder bands, and might infer an additional band mixing due to a neutron-proton interaction.(~)[GRAPHICS]

By the author/editor: LIDEN, F; CEDERWALL, Bo; AHONEN, P; BANES, DW; FANT, B; GASCON, J; show more...; HILDINGSSON, L; JOHNSON, A; JUUTINEN, S; KIRWAN, A; LOVE, DJG; MITARAI, S; MUKAI, J; NELSON, AH; NYBERG, J; SIMPSON, J; WYSS, R; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Subatomic Physic ...

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