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Octupole correlations in neutron-rich, even-even barium isotopes

Authors
Journal
Nuclear Physics A
0375-9474
Publisher
Elsevier
Publication Date

Abstract

A = 140-148 even-even barium nuclei produced in the spontaneous fission of Cm-248 were studied using the EUROGAM2 array, Spins and parities of excited levels have been firmly established from triple-gamma angular correlation and direction-polarization correlation measurements. Known band structures have been extended and new bands were found. Band-crossing phenomena have been studied, which suggest termination of an alternating-parity band by particle alignment in Ba-146 The new data for Ba-148 confirm predictions of a local decrease of electric dipole moment in Ba-146.

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