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Report No.

Measurement of excitation functions of rutherfordium isotopes in $$^{248}$$Cm + $$^{18}$$O reaction

Murakami, Masashi*; Goto, Shinichi*; Murayama, Hiroshi*; Kojima, Takayuki*; Kaji, Daiya*; Morimoto, Koji*; Haba, Hiromitsu*; Sumita, Takayuki*; Sakai, Ryutaro*; Kudo, Yuki*; Yoneda, Akira*; Morita, Kosuke*; Kikunaga, Hidetoshi*; Kasamatsu, Yoshitaka*; Sato, Tetsuya  ; Kudo, Hisaaki*

Short-lived isomer $$^{261b}$$Rf were observed only in the decay chain of $$^{277}$$Cn or $$^{269}$$Hs, so far. In this work, we performed to confirm that the $$^{261b}$$Rf would be produced in the reaction of $$^{248}$$Cm +$$^{18}$$O simultaneously with the production of $$^{261a}$$Rf (T$$_{1/2}$$ = 68s) by using a gas-filled recoil ion separator (GARIS) at the RIKEN linear accelerator.



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