Superdeformed band in [sup 142]Sm

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...

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Veröffentlicht in:	Physical review. C, Nuclear physics Nuclear physics, 1993-02, Vol.47:2
Hauptverfasser:	Hackman, G., Mullins, S.M., Kuehner, J.A., Prevost, D., Waddington, J.C., Galindo-Uribarri, A., Janzen, V.P., Radford, D.C., Schmeing, N., Ward, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	663560 > Nuclear Mass Ranges-- A=90-149-- (1992-) 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 PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS NUCLEI RADIOISOTOPES RARE EARTH ISOTOPES RARE EARTH NUCLEI RESIDUAL INTERACTIONS SAMARIUM 142 SAMARIUM ISOTOPES SHELL MODELS SPECTROSCOPY TARGETS 663110 > General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-) TIN 124 TARGET
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Zusammenfassung:	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.
ISSN:	0556-2813 1089-490X
DOI:	10.1103/PhysRevC.47.R433