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

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decay
recoil ions
cross sections
separators
half life
energy
isotopes
irradiation
gases
excitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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

In: journal of the physical society of japan, Vol. 82, No. 2, 024202, 01.02.2013.

Research output: Contribution to journalArticle

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, SI, Goto, SI, Murakami, M, Kariya, Y, Tokanai, F, Mayama, K, Takeyama, M, Moriya, T, Ideguchi, E, Yamaguchi, T, Kikunaga, H, Chiba, J & Morita, K 2013, 'New result on the production of 277Cn by the 208Pb + 70Zn Reaction', journal of the physical society of japan, vol. 82, no. 2, 024202. https://doi.org/10.7566/JPSJ.82.024202
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. / New result on the production of 277Cn by the 208Pb + 70Zn Reaction. In: journal of the physical society of japan. 2013 ; Vol. 82, No. 2.
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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.",
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AU - Morimoto, Kouji

AU - Kaji, Daiya

AU - Haba, Hiromitsu

AU - Ozeki, Kazutaka

AU - Sakai, Ryutaro

AU - Yoneda, Akira

AU - Yoshida, Atsushi

AU - Hasebe, Hiroo

AU - Katori, Kenji

AU - Sato, Nozomi

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AU - Mitsuoka, Shin Ichi

AU - Goto, Shin Ichi

AU - Murakami, Masashi

AU - Kariya, Yoshiki

AU - Tokanai, Fuyuki

AU - Mayama, Keita

AU - Takeyama, Mirei

AU - Moriya, Toru

AU - Ideguchi, Eiji

AU - Yamaguchi, Takayuki

AU - Kikunaga, Hidetoshi

AU - Chiba, Junsei

AU - Morita, Kosuke

PY - 2013/2/1

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N2 - 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.

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