Nuclear shape coexistence in 194Hg

Spherical-deformed shape coexistence for the pf shell in the nuclear shell model

Takahiro Mizusaki, Takaharu Otsuka, Michio Honma, and B. Alex Brown Department of Law, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580, Japan Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi Aizu-Wakamatsu, Fukushima 965-8580, Jap...

Triaxiality and shape coexistence in Germanium isotopes

The ground-state deformations of the Ge isotopes are investigated in the framework of GognyHartree-Fock-Bogoliubov (HFB) and Skyrme Hartree-Fock plus pairing in the BCS approximation. Three different Skyrme parametrizations are used to explore the influence of different effective masses and spin-orbit models. There is generally good agreement for binding energies and deformations (total quadrup...

Shape coexistence in the neutron-deficient isotope

Neutron-deficient nuclei near the Z=82 closed shell exhibit the phenomenon of shape coexistence where the nucleus can take on oblate, prolate, and even spherical shapes at around the same excitation energy. The single-proton excitations in 187 Tl (with Z=81) can be used as a probe into the microscopic mechanisms behind this phenomenon. Previous studies of 187 Tl deduced the presence of coexisti...

Shape Coexistence in Light Krypton Isotopes

Nuclear masses: evidence of order-chaos coexistence.

Shell corrections are important in the determination of nuclear ground-state masses and shapes. Although general arguments favor a regular single-particle dynamics, symmetry breaking and the presence of chaotic layers cannot be excluded. The latter provide a natural framework that explains the observed differences between experimental and computed masses.