Signature splitting in nuclear rotational bands: Neutron [ital i][sub 13/2] systematics

• Published in: Physical review. C, Nuclear physics Nuclear physics, 1994-10, Vol.50:4
• Main Authors: Mueller, W.F., Jensen, H.J., Reviol, W., Riedinger, L.L., Yu, C., Zhang, J., Nazarewicz, W., Wyss, R.
• Format: Article
• Language: English
• Subjects: 663110 - General & Average Properties of Nuclei & Nuclear Energy Levels- (1992-); 663120 - Nuclear Structure Models & Methods- (1992-); BARYONS; COLLECTIVE EXCITATIONS; COLLECTIVE MODEL; CRANKING MODEL; DATA; DEFORMATION; DYSPROSIUM ISOTOPES; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; ERBIUM ISOTOPES; EXCITATION; EXCITED STATES; EXPERIMENTAL DATA; FERMIONS; HADRONS; HAFNIUM ISOTOPES; INFORMATION; INTERACTIONS; ISOTOPES; MATHEMATICAL MODELS; NEUTRONS; NUCLEAR DEFORMATION; NUCLEAR MODELS; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR POTENTIAL; NUCLEONS; NUMERICAL DATA; OSMIUM ISOTOPES; PAIRING INTERACTIONS; POTENTIALS; RARE EARTH ISOTOPES; ROTATIONAL STATES; TUNGSTEN ISOTOPES; WOODS-SAXON POTENTIAL; YTTERBIUM ISOTOPES
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.50.1901

Experimental values of signature splitting in [nu][ital i][sub 13/2] rotational bands in odd-[ital N] even-[ital Z] nuclei in the [ital Z]=62--78 region are collected and presented. A procedure is introduced to calculate signature splitting within the cranked deformed Woods-Saxon model. In the theoretical treatment, deformation parameters are obtained by minimizing the total Routhians of individual [nu][ital i][sub 13/2] bands, and the procedure accounts for the possibility that the two signatures have different deformations and pairing gaps. Experimental signature splitting data for [nu][ital i][sub 13/2] bands in Dy, Er, Yb, Hf, W, and Os nuclei are compared with calculated values. The sensitivity of calculated signature splitting to changes in deformation, pairing, and other model parameters is presented.