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Band structure and shape coexistence in56135Ba79
- Source :
- Physical Review C. 81
- Publication Year :
- 2010
- Publisher :
- American Physical Society (APS), 2010.
-
Abstract
- Excited states of ${}_{56}^{135}{\mathrm{Ba}}_{79}$ at high spins are studied using the reaction $^{130}\mathrm{Te}$($^{9}\mathrm{Be}$,$4n$)${}_{56}^{135}{\mathrm{Ba}}_{79}$ at $42.5$-MeV beam energy. The earlier known level scheme is extended up to $6.4$-MeV excitation energy and ($37/2$)$\ensuremath{\hbar}$ spin with the addition of several transitions. We have performed polarization asymmetry measurements for some of the strong transitions by using a Clover detector to assign the parity. A comparison of experimental data with the results of tilted axis cranking calculations based on various configurations indicates the coexistence of multiple minima in the triaxial deformation ($\ensuremath{\gamma}$), whereas axial symmetric deformation (${\ensuremath{\epsilon}}_{2}$) remains constant around $0.09$.
Details
- ISSN :
- 1089490X and 05562813
- Volume :
- 81
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi...........54557277bd053e7bddf5654a5afe3bd0