Superdeformed band in [sup 142]Sm

Journal Article · Sun Jan 31 23:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.R433· OSTI ID:7177210

Hackman, G; Mullins, S M; Kuehner, J A; Prevost, D; Waddington, J C ^[1]; Galindo-Uribarri, A; Janzen, V P; Radford, D C; Schmeing, N; Ward, D ^[2]

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1. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S4M1 (Canada)
2. AECL Research, Chalk River Laboratories, Chalk River, Ontario, K0J1J0 (Canada)

Observation of [gamma]-[gamma] coincidences from the reaction [sup 124]Sn([sup 24]Mg,[ital xn]) at 145 MeV has revealed a discrete superdeformed rotational band and evidence of a superdeformed continuum in [sup 142]Sm. This result is consistent with cranked shell model calculations indicating shell gaps favorable to superdeformed structures in [ital N]=80, [ital Z][similar to]64 nuclei. It is proposed that the [sup 142]Sm band may be described by a proton hole in an [sup 143]Eu core. The dynamic moment of inertia of the superdeformed band is more constant than predicted by the model. This may be due to a strong residual interaction between a 6[sub 1] proton intruder and aligning [ital N]=6 valence neutrons.

• OSTI ID: 7177210
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
COLLECTIVE MODEL
CRANKING MODEL
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
GAMMA SPECTROSCOPY
HEAVY ION REACTIONS
HIGH SPIN STATES
HOURS LIVING RADIOISOTOPES
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAGNESIUM 24 REACTIONS
MATHEMATICAL MODELS
MOMENT OF INERTIA
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RESIDUAL INTERACTIONS
SAMARIUM 142
SAMARIUM ISOTOPES
SHELL MODELS
SPECTROSCOPY
TARGETS
TIN 124 TARGET