The development of nuclear shapes under the extreme conditions of high angular momentum and/or temperature is examined. Scaling properties are used to demonstrate universal properties of both thermal expectation values of nuclear shapes as well as the minima of the free energy, which can be used to understand the Jacobi transition. A universal correlation between the width of the giant-dipole r...

The electric-quadrupole coupling constant of the ground states of the proton drip line nucleus 20Na(Iπ = 2+, T1/2 = 447.9 ms) and the neutron-deficient nucleus 21Na(Iπ = 3/2+, T1/2 = 22.49 s) in a hexagonal ZnO single crystal were precisely measured to be |eqQ/h| = 690 ± 12 kHz and 939 ± 14 kHz, respectively, using the multi-frequency β-ray detecting nuclear magnetic resonance technique under p...