Mass-TKE distributions for symmetric fission in neutron-rich Fm and transfermium nuclei

Asai, Masato

Fission-fragment mass and total kinetic energy (TKE) distributions for the spontaneous fission (SF) of neutron-rich Fm and transfermium nuclei have been measured precisely. The deduced mass-TKE distributions for the SF of $^{258}$ Fm, $^{259}$ Md, and $^{259}$ Lr revealed that the SF of these nuclei show mixture of three types of fission with different mechanisms: the high-TKE symmetric fission, low-TKE symmetric fission, and asymmetric fission.

Language	:	English
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Meeting title	:	International Conference on Heavy-ion Collisions at near-barrier energies (FUSION23)
Held date	:	2023/11
Location (city)	:	Shizuoka
Location (country)	:	Japan
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Keywords	:	Fermium 258; Mendelevium 259; Lawrencium 259; Spontaneous Fission; Symmetric fission; On-line Isotope Separation; Einsteinium 254 Target
Research Facility	:	タンデム加速器
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Cooperating Institute	:	九州大学; 理化学研究所; 徳島大学; 量子科学技術研究開発機構; 名古屋大学; Oak Ridge National Laboratory

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Registration No. : BB20230625
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