Abstract
The multipole mixing ratios of $\ensuremath{\gamma}$ transitions among the low-spin states of ${}^{130}\mathrm{Ba}$ have been studied by means of a $\ensuremath{\gamma}\ensuremath{\gamma}$ angular correlation analysis. The excited states of ${}^{130}\mathrm{Ba}$ were populated in the $\ensuremath{\beta}$ decay of ${}^{130}\mathrm{La}$ obtained with the ${}^{120}\mathrm{Sn}{(}^{14}\mathrm{N},4n)$ reaction at 65 MeV. The $\ensuremath{\gamma}$ ray spectra were measured off-beam with the Osiris-8 detector array, which was enhanced by one Euroball cluster detector, at the University of Cologne. We obtained precise and unique values for the multipole mixing ratios of 18 transitions.
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