New result on the production of 277Cn by the 208Pb + 70Zn Reaction

Takayuki Sumita, Kouji Morimoto, Daiya Kaji, Hiromitsu Haba, Kazutaka Ozeki, Ryutaro Sakai, Akira Yoneda, Atsushi Yoshida, Hiroo Hasebe, Kenji Katori, Nozomi Sato, Yasuo Wakabayashi, Shin Ichi Mitsuoka, Shin Ichi Goto, Masashi Murakami, Yoshiki Kariya, Fuyuki Tokanai, Keita Mayama, Mirei Takeyama, Toru MoriyaEiji Ideguchi, Takayuki Yamaguchi, Hidetoshi Kikunaga, Junsei Chiba, Kosuke Morita

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Abstract

The production and decay properties of an isotope of the 112th element, 277Cn, were investigated using a gas-filled recoil ion separator by irradiation of 208Pb targets with 70Zn 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 277Cn at the beam energy of 351.5 MeV. The measured production cross section was 0.078+0.179-0.065pb. The present result gives improved half-lives of 0.61+0.46-0.18 and 0.19 +0.14-0.06 ms for 277Cn and 273Ds, 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.

Original languageEnglish
Article number024202
Journaljournal of the physical society of japan
Volume82
Issue number2
DOIs
Publication statusPublished - Feb 1 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Sumita, T., Morimoto, K., Kaji, D., Haba, H., Ozeki, K., Sakai, R., Yoneda, A., Yoshida, A., Hasebe, H., Katori, K., Sato, N., Wakabayashi, Y., Mitsuoka, S. I., Goto, S. I., Murakami, M., Kariya, Y., Tokanai, F., Mayama, K., Takeyama, M., ... Morita, K. (2013). New result on the production of 277Cn by the 208Pb + 70Zn Reaction. journal of the physical society of japan, 82(2), [024202]. https://doi.org/10.7566/JPSJ.82.024202