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 Moriya; Eiji Ideguchi; Takayuki Yamaguchi; Hidetoshi Kikunaga; Junsei Chiba; Kosuke Morita

doi:10.7566/JPSJ.82.024202

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

Research output: Contribution to journal › Article › peer-review

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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 language	English
Article number	024202
Journal	journal of the physical society of japan
Volume	82
Issue number	2
DOIs	https://doi.org/10.7566/JPSJ.82.024202
Publication status	Published - Feb 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.7566/JPSJ.82.024202

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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), Article 024202. https://doi.org/10.7566/JPSJ.82.024202

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

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title = "New result on the production of 277Cn by the 208Pb + 70Zn Reaction",

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.",

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

year = "2013",

month = feb,

doi = "10.7566/JPSJ.82.024202",

language = "English",

volume = "82",

journal = "journal of the physical society of japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "2",

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TY - JOUR

T1 - New result on the production of 277Cn by the 208Pb + 70Zn Reaction

AU - Sumita, Takayuki

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

AU - Wakabayashi, Yasuo

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

Y1 - 2013/2

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.

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

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