5 papers
New Ground State in La Removes Two-Neutron-Separation-Energy Anomaly in Lanthanum Isotopes
S. Kimura, M. Wada, H. Haba +9
Nuclear mass is a key indicator of how the nuclear shell structure evolves. The recent mass measurement study of neutron-rich lanthanum isotopes [A. Jaries, ., Phys. Rev. Le…
Extending the low- "border'' of the region of deformation with precision mass spectrometry of Kr
D. Lunney, V. Manea, M. Mougeot +17
The onset of collective nuclear behavior in the , , region is examined through high-precision mass measurements of Kr, performed with the ISOLTRAP mas…
Precision mass measurements around Mo rule out ZrNb cycle formation in the rapid proton-capture process at type I X-ray bursts
S. Kimura, M. Wada, C. Y. Fu +27
The rapid proton-capture (-) process is one of the primary, explosive thermonuclear burning processes that drive type I X-ray bursts. A possible termination of the -process…
Anomalous nuclear effects on ion charge state distribution in helium gas
Sota Kimura, Michiharu Wada, Hiromitsu Haba +4
The influence of isotope differences on ion charge state yield ratios has never been studied in detail, having been considered negligible. However, we have observed anomalous ion c…
Direct observation of and decay from a high-spin long-lived isomer in Ta
J. L. Chen, H. Watanabe, P. M. Walker +20
Ta (, ) is located in the neutron-rich region where a prolate-to-oblate shape transition via triaxial softness is predicted to take place. A pr…