Shape coexistence in ${}^{94}Zr$ studied via Coulomb excitation.

Marchini N.

I - Fisica nucleare e subnucleare
Aula Palazzo dell'Emiciclo - Sala B. Croce - Martedì 24 h 09:00 - 12:00
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The zirconium isotopes exhibit a variety of shapes, going from deformation near mid-open-shell (${}^{80}Zr$), through sphericity near the closed neutron shell (${}^{90}Zr$) and sub-shell (${}^{96}Zr$), and then to a reappearance of deformation at ${}^{100}Zr$. ${}^{94}Zr$ is particularly interesting because it is thought to be a strong candidate for displaying type-II shell evolution, as recently proposed by state-of-the-art Monte Carlo Shell Model calculations. As such, a dedicated experiment to study collectivity and configuration coexistence in ${}^{94}Zr$ by means of low-energy Coulomb excitation was performed at the INFN Legnaro National Laboratory. In this contribution, I will present the results of the experiment.

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