English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Octupole deformations and related collective excitations are analyzed usingthe framework of nuclear density functional theory. Axially-symmetricquadrupole-octupole constrained self-consistent mean-field (SCMF) calculationswith a choice of universal energy density functional and a pairing interactionare performed for Xe, Ba, and Ce isotopes from proton-rich to neutron-richregions, and neutron-rich Se, Kr, and Sr isotopes, in which enhanced octupolecorrelations are expected to occur. Low-energy positive- and negative-parityspectra and transition strengths are computed by solving thequadrupole-octupole collective Hamiltonian, with the inertia parameters andcollective potential determined by the constrained SCMF calculations.Octupole-deformed equilibrium states are found in the potential energy surfacesof the Ba and Ce isotopes with $N\approx 56$ and 88. The evolution ofspectroscopic properties indicates enhanced octupole correlations in theregions corresponding to $N\approx Z\approx 56$, $Z\approx 88$ and $Z\approx56$, and $N\approx 56$ and $Z\approx 34$. The average $\beta_{30}$ deformationparameter and its fluctuation exhibit signatures of octupole shape phasetransition around $N=56$ and 88.

Microscopic description of octupole collective excitations near $N=56$ and $N=88$