Evidence for Octupole Correlations in Multiple Chiral Doublet Bands

Liu, C. and Wang, S. Y. and Bark, R. A. and Zhang, S. Q. and Meng, J. and Nyakó, Barna Mátyás (2016) Evidence for Octupole Correlations in Multiple Chiral Doublet Bands. PHYSICAL REVIEW LETTERS, 116 (11). p. 112501. ISSN 0031-9007

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Abstract

Two pairs of positive-and negative-parity doublet bands together with eight strong electric dipole transitions linking their yrast positive- and negative-parity bands have been identified in Br78. They are interpreted as multiple chiral doublet bands with octupole correlations, which is supported by the microscopic multidimensionally-constrained covariant density functional theory and triaxial particle rotor model calculations. This observation reports the first example of chiral geometry in octupole soft nuclei. © 2016 American Physical Society.

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