Coulomb excitation of $^{102}\mathrm{Ru}$ with $^{12}\mathrm{C}$ and $^{16}\mathrm{O}$
Résumé
The Coulomb excitation of was performed with beams of and ions. The beam particles scattered at forward angles were momentum analyzed with a magnetic spectrograph. The resolution achieved enabled the populations of the state, the unresolved , and , doublets of states, and the state to be determined as a function of the scattering angle. These populations are compared with gosia calculations, yielding W.u., W.u., W.u., and W.u. The value is significantly larger than previously measured. The weakly populated state, presumed to be a member of the band built on the state, was observed clearly for a single angle only, and a fit to its population results in W.u. Using the known -ray branching ratios for the level, the value is calculated to be W.u., substantially less than the . This suggests that the deformation of the state is lower than that of the state. The results are compared with beyond-mean-field calculations with the Gogny-D1S interaction using the symmetry-conserving configuration-mixing method.
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