Nuclear shape coexistence is the phenomenon in which distinct shapes occur within the
same nucleus and at a similar energy. In this work, we provide an overview of the …

Electric monopole, E 0 transitions in nuclei are reviewed. Values for ρ 2 (E 0)× 1 0 3, X (E
0/E 2) and q K 2 (E 0/E 2) are tabulated. Particular attention is paid to a complete re …

The rapid shape change in Zr isotopes near neutron number N= 60 is identified to be
caused by type II shell evolution associated with massive proton excitations to its 0 g 9/2 …

Background: Type II shell evolution has recently been identified as a microscopic cause for
nuclear shape coexistence. Purpose: Establish a low-lying rotational band in Zr 96 …

The zirconium isotopes with A= 92–110 have one of the most complicated evolution of
structure in the nuclear chart. In order to understand the structural evolution of these …

Background: The mass region with A≈ 100 and Z≈ 40 is known to experience a sudden
onset of deformation. The presence of the subshell closure Z= 40 makes it feasible to create …

The lifetimes of the first excited 2+, 4+, and 6+ states in Zr 98 were measured with the recoil-
distance Doppler shift method in an experiment performed at GANIL. Excited states in Zr 98 …

We report on the first γ-ray spectroscopy of low-lying states in neutron-rich Kr 98, 100
isotopes obtained from Rb 99, 101 (p, 2 p) reactions at∼ 220 MeV/nucleon. A reduction of …

The first fast-timing measurements from nuclides produced via the in-flight fission
mechanism are reported. The lifetimes of the first 2+ states in 104,106 Zr nuclei have been …

We explore the situation of intertwined quantum phase transitions (IQPTs), for which a QPT
involving a crossing of two configurations is accompanied by a shape evolution of each …