Rotational bands and neutron alignments in neutron rich odd-A cadmium isotopes

• Published in: Physical review. C, Nuclear physics Nuclear physics, 1994-04, Vol.49 (4), p.1885-1895
• Main Authors: Regan, PH, Middleton, JS, Pohl, KR, Bush, JE, Raines, PE, Balamuth, DP, Mullins, SM, Ward, D, Galindo-Uribarri, A, Janzen, VP, Pilotte, S
• Format: Article
• Language: English
• Subjects: 663220 > Electromagnetic Transitions-- (1992-); 663450 > Heavy-Ion-Induced Reactions & Scattering-- (1992-); 663560 > Nuclear Mass Ranges-- A=90-149-- (1992-); ALIGNMENT; ANGULAR CORRELATION; BARYONS; BETA DECAY RADIOISOTOPES; CADMIUM 109; CADMIUM 111; CADMIUM ISOTOPES; CHARGED-PARTICLE REACTIONS; COLLECTIVE EXCITATIONS; CORRELATIONS; CRANKING MODEL; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; EXCITATION; EXCITED STATES; FERMIONS; HADRONS; HEAVY ION REACTIONS; HIGH SPIN STATES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATHEMATICAL MODELS; MEV RANGE; MEV RANGE 10-100; MINUTES LIVING RADIOISOTOPES; NEUTRONS; NUCLEAR MODELS; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; OXYGEN 18 REACTIONS; PARITY; PARTICLE PROPERTIES; RADIOISOTOPES; ROTATIONAL STATES; SHELL MODELS; STABLE ISOTOPES; TARGETS; YEARS LIVING RADIOISOTOPES 663110 > General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-); YRAST STATES; ZIRCONIUM 96 TARGET
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.49.1885

High-spin states in [sup 109,111]Cd have been investigated with the reaction [sup 96]Zr([sup 18]O,[ital xn])[sup 114[minus][ital x]]Cd at beam energies of 60 and 70 MeV. The decoupled yrast bands observed in both nuclei are interpreted as being built upon a low-[ital Kh]11/2-quasineutron configuration. Both structures exhibit band crossings corresponding to the rotational alignment of a pair of [ital h]11/2 quasineutrons. Two positive-parity bands built on a [ital g]7/2-quasineutron configuration are observed in [sup 109]Cd. These exhibit a signature inversion in the region of the first ([nu][ital h][sub 11/2)][sup 2] alignment. This may be associated with some softness to triaxiality. The results are discussed in terms of the cranked shell model, total Routhian surface calculations, and the systematics of neighboring nuclei.