The odd-odd Cs isotopes 128-134Cs have been investigated in search of chiral doublet bands. Two nearly degenerate bands built on the πh11/2⊗vh11/2 configuration have been identified in 128-132Cs. Systematics of various experimental observables associated with the partner bands are presented. The B(M1)In/B(M1)Out staggering with spin was discovered to be in phase with the B(M1)/B(E2) staggering for the yrast panner band. A core-quasiparticle coupling model employing the Kerman-Klein-Dönau-Frauendorf method was applied to study 128Cs. A triaxial core with an irrotational-flow moment of inertia was assumed. The chiral features, as well as previously known experimental characteristics of the πh11/2⊗vh11/2 yrast partner band, are well reproduced demonstrating the important role played by triaxiality in the underlying physics in these nuclei.
|Number of pages||3988732|
|Journal||Physical Review C - Nuclear Physics|
|Publication status||Published - 2003 Apr 1|
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics