Abstract

Two distinct bands have been populated to high spin in the doubly-odd nucleus $^{130}\mathrm{La}$ following the $^{116}\mathrm{F}$,5n) reaction at 76 MeV. Both bands consist of strong M1 transitions with weaker E2 crossovers. One band, built on the \ensuremath{\pi}${h}_{11/2}$\ensuremath{\bigotimes}\ensuremath{\nu}${h}_{11/2}$ configuration, has a small signature splitting (\ensuremath{\sim}50 keV) indicating a slightly triaxial shape. The other band, believed to be built on the \ensuremath{\pi}${h}_{11/2}$\ensuremath{\bigotimes}\ensuremath{\nu}${g}_{7/2}$ configuration, shows no signature splitting and is predicted to possess a near-axial prolate shape. Both bands show constant alignment with increasing spin with no low frequency band crossings due to the blocking effect of the ${h}_{11/2}$ proton.

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