학술논문

Shape transitions between and within Zr isotopes.
Document Type
Article
Source
EPJ Web of Conferences. 12/4/2019, Vol. 223, p1-4. 4p.
Subject
*ZIRCONIUM isotopes
*NEUTRONS
*NUCLEAR shell theory
*GROUND state energy
*NUCLEAR structure
Language
ISSN
2101-6275
Abstract
The Zirconium isotopes across the N=56,58 neutron sub-shell closures have been of special interest since years, sparked by the near doubly-magic features of 96Zr and the subsequent rapid onset of collectivity with a deformed ground-state structure already in 100Zr. Recent state-of-the-art shell model approaches did not only correctly describe this shape-phase transition in the Zr isotopic chain, but alsothe coexistence of non-collective structures and pronounced collectivity especially in 96,98Zr. Theisotope 98Zr is located on the transition from spherical to deformed ground state structures. We summarize recent experimental work to obtain the B(E2) excitation strengths of the first 2+ state of98Zr, including a new experiment employing the recoil-distance Doppler-shift method following a two-neutron transfer reaction. [ABSTRACT FROM AUTHOR]