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A comprehensive view of nuclear shapes, rotations and vibrations from fully quantum mechanical perspectives
Takaharu Otsuka
The nuclear quadrupole collective states at low excitation energies are described in a novel, fully quantum mechanical and systematic manner as compared to traditional pictures ini…
Shape transition of Nd and Sm isotopes and neutrinoless double-beta decay nuclear matrix element of Nd
Yusuke Tsunoda, Noritaka Shimizu, Takaharu Otsuka
Neutron-rich Nd and Sm isotopes are known to exhibit shape phase transition as a function of neutron number. Among them, Nd and Sm are important not only because th…
Prevailing Triaxial Shapes in Atomic Nuclei and a Quantum Theory of Rotation of Composite Objects
T. Otsuka, Y. Tsunoda, N. Shimizu +3
In the traditional view, heavy deformed nuclei are like axially-symmetric prolate ellipsoids, rotating about one of the short axes. In the present picture, their shapes may be tria…
Emerging concepts in nuclear structure based on the shell model
Takaharu Otsuka
Some emerging concepts of nuclear structure are overviewed. (1) Background: the many-body quantum structure of atomic nucleus, a complex system comprising protons and neutrons (cal…
Moments and Radii of exotic Na and Mg isotopes
Takaharu Otsuka, Noritaka Shimizu, Yusuke Tsunoda
The ground-state properties of neutron-rich exotic Na and Mg isotopes with even numbers of neutrons, N, are studied up to driplines. The shell-model calculations with an ab initio…
Systematic shell-model study on spectroscopic properties in the south region of Pb
Cenxi Yuan, Menglan Liu, Noritaka Shimizu +4
We aim to study the properties of nuclei in the south region of Pb systematically, including the binding and excitation energies and electromagnetic properties, in order to…