Shell-model influence in the rotational nucleus {sup 86}Mo

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.117· OSTI ID:288830

Rudolph, D; Gross, C J; Akovali, Y A; Baktash, C; Doering, J; Durham, F E; Hua, P; Johns, G D; Korolija, M; LaFosse, D R; Lee, I Y; Macchiavelli, A O; Rathbun, W; Sarantites, D G; Stracener, D W; Tabor, S L; Afanasjev, A V; Ragnarsson, I ^[1]

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1. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

High-spin states in {sup 86}Mo were studied by means of the fusion evaporation reaction {sup 58}Ni({sup 32}S,2{ital p}2{ital n}){sup 86}Mo at 135 MeV beam energy. Charged-particle-{gamma}{gamma} and -{gamma}{gamma}{gamma} coincidences recorded with the early implementation of the GAMMASPHERE array and the MICROBALL charged-particle detection system were used to largely extend the level scheme of the {ital T}{sub {ital z}}=1 nucleus {sup 86}Mo to a possible spin of {ital I}=24{h_bar} at 13 MeV excitation energy. The excitation scheme is compared to neighboring nuclei. There is evidence for enhanced shell-model influence in the 4 quasiparticle region ({ital I}=12{endash}16 {h_bar}). The observed ({pi}=+,{alpha}=0) sequence at spin {ital I}{ge}16{h_bar} appears to be associated with a triaxial collective rotational band. This interpretation is supported by calculations within the configuration-dependent shell-correction approach with the cranked Nilsson potential. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098; AC05-76OR00033; AC05-96OR22464; FG02-88ER40406
• OSTI ID: 288830
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 1 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARGED PARTICLES
COINCIDENCE METHODS
CRANKING MODEL
DETECTION
EVAPORATION
EXCITATION
HIGH SPIN STATES
MOLYBDENUM 86
NICKEL 58 TARGET
ROTATIONAL STATES
SHELL MODELS
SULFUR 32 REACTIONS