Experiment on synthesis of an isotope277112 by208Pb + 70Zn reaction

Kosuke Morita; Kouji Morimoto; Daiya Kaji; Takahiro Akiyama; Sin Ichi Goto; Hiromitsu Haba; Eiji Ideguchi; Kenji Katori; Hiroyuki Koura; Hisaaki Kudo; Tetsuya Ohnishi; Akira Ozawa; Toshimi Suda; Keisuke Sueki; Fuyuki Tokanai; Takayuki Yamaguchi; Akira Yoneda; Atsushi Yoshida

doi:10.1143/JPSJ.76.043201

Experiment on synthesis of an isotope²⁷⁷112 by²⁰⁸Pb + ⁷⁰Zn reaction

Kosuke Morita, Kouji Morimoto, Daiya Kaji, Takahiro Akiyama, Sin Ichi Goto, Hiromitsu Haba, Eiji Ideguchi, Kenji Katori, Hiroyuki Koura, Hisaaki Kudo, Tetsuya Ohnishi, Akira Ozawa, Toshimi Suda, Keisuke Sueki, Fuyuki Tokanai, Takayuki Yamaguchi, Akira Yoneda, Atsushi Yoshida

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

143 Citations (Scopus)

Abstract

The production and decay of ²⁷⁷112 have been investigated using a gas-filled recoil ion separator in irradiations of ²⁰⁸Pb targets with a ⁷⁰Zn beam at 349.5 MeV. We have observed two α-decay chains that can be assigned to subsequent decays from ²⁷⁷112 produced in the ²⁰⁸Pb(⁷⁰Zn,n) reaction. After emitting four consecutive α-particles, both the chains terminate by spontaneous fission decays of ²⁶¹Rf, and the decay energies and decay times of both the chains obtained in the present work agree well with those reported by a group at Gesellschaft für Schwerionenforschung (GSI), Germany. The present result gives the first clear confirmation of the discovery of ²⁷⁷112 and its α-decay product ²⁷³Ds reported previously.

Original language	English
Article number	043201
Journal	journal of the physical society of japan
Volume	76
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.76.043201
Publication status	Published - 2007 Apr 1
Externally published	Yes

Keywords

Gas-filled recoil separator
Production and decay

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.76.043201

Cite this

Morita, K., Morimoto, K., Kaji, D., Akiyama, T., Goto, S. I., Haba, H., Ideguchi, E., Katori, K., Koura, H., Kudo, H., Ohnishi, T., Ozawa, A., Suda, T., Sueki, K., Tokanai, F., Yamaguchi, T., Yoneda, A., & Yoshida, A. (2007). Experiment on synthesis of an isotope²⁷⁷112 by²⁰⁸Pb + ⁷⁰Zn reaction. journal of the physical society of japan, 76(4), [043201]. https://doi.org/10.1143/JPSJ.76.043201

Morita, K, Morimoto, K, Kaji, D, Akiyama, T, Goto, SI, Haba, H, Ideguchi, E, Katori, K, Koura, H, Kudo, H, Ohnishi, T, Ozawa, A, Suda, T, Sueki, K, Tokanai, F, Yamaguchi, T, Yoneda, A & Yoshida, A 2007, 'Experiment on synthesis of an isotope²⁷⁷112 by²⁰⁸Pb + ⁷⁰Zn reaction', journal of the physical society of japan, vol. 76, no. 4, 043201. https://doi.org/10.1143/JPSJ.76.043201

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title = "Experiment on synthesis of an isotope277112 by208Pb + 70Zn reaction",

abstract = "The production and decay of 277112 have been investigated using a gas-filled recoil ion separator in irradiations of 208Pb targets with a 70Zn beam at 349.5 MeV. We have observed two α-decay chains that can be assigned to subsequent decays from 277112 produced in the 208Pb(70Zn,n) reaction. After emitting four consecutive α-particles, both the chains terminate by spontaneous fission decays of 261Rf, and the decay energies and decay times of both the chains obtained in the present work agree well with those reported by a group at Gesellschaft f{\"u}r Schwerionenforschung (GSI), Germany. The present result gives the first clear confirmation of the discovery of 277112 and its α-decay product 273Ds reported previously.",

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AU - Morita, Kosuke

AU - Morimoto, Kouji

AU - Kaji, Daiya

AU - Akiyama, Takahiro

AU - Goto, Sin Ichi

AU - Haba, Hiromitsu

AU - Ideguchi, Eiji

AU - Katori, Kenji

AU - Koura, Hiroyuki

AU - Kudo, Hisaaki

AU - Ohnishi, Tetsuya

AU - Ozawa, Akira

AU - Suda, Toshimi

AU - Sueki, Keisuke

AU - Tokanai, Fuyuki

AU - Yamaguchi, Takayuki

AU - Yoneda, Akira

AU - Yoshida, Atsushi

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N2 - The production and decay of 277112 have been investigated using a gas-filled recoil ion separator in irradiations of 208Pb targets with a 70Zn beam at 349.5 MeV. We have observed two α-decay chains that can be assigned to subsequent decays from 277112 produced in the 208Pb(70Zn,n) reaction. After emitting four consecutive α-particles, both the chains terminate by spontaneous fission decays of 261Rf, and the decay energies and decay times of both the chains obtained in the present work agree well with those reported by a group at Gesellschaft für Schwerionenforschung (GSI), Germany. The present result gives the first clear confirmation of the discovery of 277112 and its α-decay product 273Ds reported previously.

AB - The production and decay of 277112 have been investigated using a gas-filled recoil ion separator in irradiations of 208Pb targets with a 70Zn beam at 349.5 MeV. We have observed two α-decay chains that can be assigned to subsequent decays from 277112 produced in the 208Pb(70Zn,n) reaction. After emitting four consecutive α-particles, both the chains terminate by spontaneous fission decays of 261Rf, and the decay energies and decay times of both the chains obtained in the present work agree well with those reported by a group at Gesellschaft für Schwerionenforschung (GSI), Germany. The present result gives the first clear confirmation of the discovery of 277112 and its α-decay product 273Ds reported previously.

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