Intermediate structure and dipole bands in the transitional Ba134 nucleus

• DOI: 10.1103/physrevc.101.014312
• Publication Date: 2020-01-16T10:23:44Z
• Authors: Neelam; Suresh Kumar; K. Rojeeta Devi; Naveen Kumar; S. Saha; S. Biswas; P. Singh; F. S. Babra; Md. S. R. Laskar; R. Palit; S. Samanta; S. Das; Ashok Kumar; Praveen C. Srivas...
• Keywords: Beam energy

The intermediate and high-spin states of the $^{134}\mathrm{Ba}$ nucleus have been investigated up to spin ${I}^{\ensuremath{\pi}}=({20}^{\ensuremath{-}})$ using $^{124}\mathrm{Sn}(^{13}\mathrm{C}, 3n)^{134}\mathrm{Ba}$ reaction at a beam energy 48 MeV. ${R}_{\mathrm{DCO}}$ polarization asymmetry measurements were carried out assign parity levels. Three ($\mathrm{\ensuremath{\Delta}}I=2$) negative bands studied above 1985.9 keV level having ${I}^{\ensuremath{\pi}}={5}^{\ensuremath{-}}$. two quasiparticle $\ensuremath{\nu}[{h}_{11/2}\ensuremath{\bigotimes}({s}_{1/2}/{d}_{3/2})]$ configuration has assigned these based on systematics $\mathrm{Ba}$ (even-$N$) isotopes similarity in behavior signature splitting $B(M1)/B(E2)$ ratios. Further, ($\mathrm{\ensuremath{\Delta}}I=1$) dipole also observed starting 5677.9 5284.5 levels with ${I}^{\ensuremath{\pi}}={14}^{\ensuremath{-}}$ ${15}^{+}$, respectively. was suggested from similar structure neighboring nuclei. Tilted axis cranking (TAC) calculations four $\ensuremath{\pi}[{h}_{11/2}({g}_{7/2}/{d}_{5/2})]\ensuremath{\bigotimes}\ensuremath{\nu}{[{h}_{11/2}]}^{2}$ $\ensuremath{\pi}[{h}_{11/2}({g}_{7/2}/{d}_{5/2})]\phantom{\rule{4pt}{0ex}}\ensuremath{\bigotimes}\phantom{\rule{4pt}{0ex}}\ensuremath{\nu}[{h}_{11/2}{d}_{3/2}]$ configurations for D1 D2, TAC systematic studies structures $N=78$ isotones suggest that band (D1) may magnetic rotation character.