Coulomb excitation of <sup>102</sup>Ru
ORAL
Abstract
Coulomb excitation of 102Ru was performed with beams of 12C and 16O ions at the Maier-Leibnitz Laboratory, with the scattered particles momentum analyzed using a Q3D magnetic spectrograph. Both the elastic and inelastically scattered particles were detected, and the resolution achieved enabled the populations of the 21+, 22+/41+ doublet, 23+, 24+/31- doublet, and 32- states to be determined as a function of the scattering angle, which were compared with GOSIA calculations. The deduced B(E2;21+→01+) = 41.5±2.3 W.u. is in good agreement with the ENSDF value of 44.7±0.7 W.u., while the B(E2;22+→01+ ) = 1.75±0.11 W.u. is approximately 40% larger than the ENSDF value.The weakly populated 23+ state was observed for a single angle only, and a fit to its population results in B(E2; 23+→01+ ) = 0.053±0.011 W.u. Using the known γ-ray branching ratios, the B(E2; 23+→02+) value is calculated to be 18±4 W.u., substantially less than the B(E2; 21+→01+) value, suggesting that the deformation of the 02+ state is less than that of the ground state. The results are compared with beyond-mean-field calculations with the Gogny-D1S interaction using the symmetry-conserving configuration-mixing method, and placed in context of the systematics for Ru isotopes.
*This work was supported by the Natural Sciences and Engineering Research Council of Canada.
–
Publication: Physical Review C (submitted), 2022
Presenters
-
Paul E Garrett
- Univ of Guelph