New Result on the Production of super( 277)Cn by the super( 208)Pb + super( 70)Zn Reaction

• Published in: Journal of the Physical Society of Japan Vol. 82; no. 2; p. 1
• Main Authors: Sumita, Takayuki, Morimoto, Kouji, Kaji, Daiya, Haba, Hiromitsu, Ozeki, Kazutaka, Sakai, Ryutaro, Yoneda, Akira, Yoshida, Atsushi, Hasebe, Hiroo, Katori, Kenji, Sato, Nozomi, Wakabayashi, Yasuo, Mitsuoka, Shin-ichi, Goto, Shin-ichi, Murakami, Masashi, Kariya, Yoshiki, Tokanai, Fuyuki, Mayama, Keita, Takeyama, Mirei, Moriya, Toru, Ideguchi, Eiji, Yamaguchi, Takayuki, Kikunaga, Hidetoshi, Chiba, Junsei, Morita, Kosuke
• Format: Journal Article
• Language: English
• Published: 01-02-2013
• Subjects: Beams (radiation); Cross sections; Decay; Isotopes; Lead (metal); Recoil; Symbols; Zinc
• ISSN: 0031-9015; 1347-4073

The production and decay properties of an isotope of the 112th element, ...Cn, were investigated using a gas-filled recoil ion separator by irradiation of ...Pb targets with ...Zn beams at 347.5, 351.5, and 355.5 MeV. The excitation function for this reaction was measured for the first time. We observed one decay event assigned to the decay of ...Cn at the beam energy of 351.5 MeV. The measured production cross section was 0.078... pb. The present result gives improved half-lives of 0.61... and 0.19... ms for ...Cn and ...Ds, respectively. At the other energies, no event was observed. The measured upper cross section limits were 0.25 and 0.15 pb at the beam energies of 347.5 and 355.5 MeV, respectively. (ProQuest: ... denotes formulae/symbols omitted.)