Discovery of New Isotope 241U and Systematic High-Precision Atomic Mass Measurements of Neutron-Rich Pa-Pu Nuclei Produced via Multinucleon Transfer Reactions

The new isotope 241U was synthesized and systematic atomic mass measurements of nineteen neutron -rich Pa-Pu isotopes were performed in the multinucleon transfer reactions of the 238U + 198Pt system at the KISS facility. The present experimental results demonstrate the crucial role of the multinucleon transfer reactions for accessing unexplored neutron-rich actinide isotopes toward the N = 152 shell gap in this region of nuclides.

Automated summary

The new isotope 241U was synthesized and systematic atomic mass measurements of nineteen neutron-rich Pa-Pu isotopes were performed in the multinucleon transfer reactions of the 238U + 198Pt system at the KISS facility. The present experimental results demonstrate the crucial role of the multinucleon transfer reactions for accessing unexplored neutron-rich actinide isotopes toward the N = 152 shell gap in this region of nuclides.