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EDP Sciences EPJ Web of Conferences 306
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    초록·키워드

    Multinucleon transfer (MNT) reactions have been demonstrated as a promising pathway to produce and study very neutron-rich heavy nuclei, which can enhance our understanding of the nuclear structural features relevant to the r -process. Translead fragments were produced from the MNT reaction approach using 136 Xe+ 209 Bi at IGISOL utilizing an MNT gas cell. The 211 Bi, 211m Po, 211 Po, and 212m Po nuclei have been observed prominently in the α-decay spectrum. The Geant4 simulation, which played a crucial role in optimizing the experimental parameters, reveals broader angular-energy distributions of MNT fragments released from a thick target compared to those observed from the GRAZING and Langevin models for a mono-energetic beam. Comparative yield analyses of MNT fragments for 136 Xe+ 209 Bi and 136 Xe+ 176 Yb reactions estimated using Geant4 Simulation as well as analytical formula support the production of many neutron-rich unknown mass nuclei in the rare-earth region.

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