Experiments on synthesis of the heaviest element at RIKEN

K. Morita; K. Morimoto; D. Kaji; T. Akiyama; S. Goto; H. Haba; E. Ideguchi; R. Kanumgo; K. Katori; H. Kikunaga; H. Koura; H. Kudo; T. Ohnishi; A. Ozawa; N. Sato; T. Suda; K. Sueki; F. Tokanai; H. Xu; T. Yamaguchi; A. Yoneda; A. Yoshida; Yuliang Zhao

doi:10.1063/1.2713494

Experiments on synthesis of the heaviest element at RIKEN

K. Morita, K. Morimoto, D. Kaji, T. Akiyama, S. Goto, H. Haba, E. Ideguchi, R. Kanumgo, K. Katori, H. Kikunaga, H. Koura, H. Kudo, T. Ohnishi, A. Ozawa, N. Sato, T. Suda, K. Sueki, F. Tokanai, H. Xu, T. YamaguchiA. Yoneda, A. Yoshida, Yuliang Zhao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

At the Institute of Physical and Chemical Research (RIKEN) a series of experiments studying the productions and their decays of the heaviest elements have been performed by using a gas-filled recoil ion separator GARIS. Results on the isotope of the 112th element, ²⁷⁷112, and on that of the 113th element, ²⁷⁸113, are reviewed. Tow decay chains which are assigned to be ones originating from the isotope ²⁷⁷112 were observed in the ²⁰⁸Pb(⁷⁰Zn, n) reaction. Both chains consisted of four consecutive alpha decays followed by a spontaneous fission. The results provide a confirmation of the production and decay of the isotope ²⁷⁷112 reported by a research group at Gesellschaft für Schwerionenforschung (GSI), Germany, produced via the same reaction by using a velocity filter. Tow decay chains, both consisted of four consecutive alpha decays followed by a spontaneous fission, were observed also in the reaction ²⁰⁹Bi( ⁷⁰Zn, n). Those are assigned to be the convincing candidate events of the decays of the isotope of the 113th element, ²⁷⁸113, and its daughter nuclei, ²⁷⁴Rg, ²⁷⁰Mt, ²⁶⁶Bh, and ²⁶²Db.

Original language	English (US)
Title of host publication	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
Pages	3-9
Number of pages	7
Volume	891
DOIs	https://doi.org/10.1063/1.2713494
State	Published - Apr 4 2007
Event	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI - Tours, France Duration: Sep 5 2006 → Sep 8 2006

Other

Other	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
Country/Territory	France
City	Tours
Period	9/5/06 → 9/8/06

Keywords

Mt
Rg
Confirmation of 112
Gas-filled recoil separator
New isotopes 113

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.2713494

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Morita, K., Morimoto, K., Kaji, D., Akiyama, T., Goto, S., Haba, H., Ideguchi, E., Kanumgo, R., Katori, K., Kikunaga, H., Koura, H., Kudo, H., Ohnishi, T., Ozawa, A., Sato, N., Suda, T., Sueki, K., Tokanai, F., Xu, H., ... Zhao, Y. (2007). Experiments on synthesis of the heaviest element at RIKEN. In TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI (Vol. 891, pp. 3-9) https://doi.org/10.1063/1.2713494

Morita, K, Morimoto, K, Kaji, D, Akiyama, T, Goto, S, Haba, H, Ideguchi, E, Kanumgo, R, Katori, K, Kikunaga, H, Koura, H, Kudo, H, Ohnishi, T, Ozawa, A, Sato, N, Suda, T, Sueki, K, Tokanai, F, Xu, H, Yamaguchi, T, Yoneda, A, Yoshida, A & Zhao, Y 2007, Experiments on synthesis of the heaviest element at RIKEN. in TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI. vol. 891, pp. 3-9, TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI, Tours, France, 9/5/06. https://doi.org/10.1063/1.2713494

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title = "Experiments on synthesis of the heaviest element at RIKEN",

abstract = "At the Institute of Physical and Chemical Research (RIKEN) a series of experiments studying the productions and their decays of the heaviest elements have been performed by using a gas-filled recoil ion separator GARIS. Results on the isotope of the 112th element, 277112, and on that of the 113th element, 278113, are reviewed. Tow decay chains which are assigned to be ones originating from the isotope 277112 were observed in the 208Pb(70Zn, n) reaction. Both chains consisted of four consecutive alpha decays followed by a spontaneous fission. The results provide a confirmation of the production and decay of the isotope 277112 reported by a research group at Gesellschaft f{\"u}r Schwerionenforschung (GSI), Germany, produced via the same reaction by using a velocity filter. Tow decay chains, both consisted of four consecutive alpha decays followed by a spontaneous fission, were observed also in the reaction 209Bi( 70Zn, n). Those are assigned to be the convincing candidate events of the decays of the isotope of the 113th element, 278113, and its daughter nuclei, 274Rg, 270Mt, 266Bh, and 262Db.",

keywords = "Mt, Rg, Confirmation of 112, Gas-filled recoil separator, New isotopes 113",

author = "K. Morita and K. Morimoto and D. Kaji and T. Akiyama and S. Goto and H. Haba and E. Ideguchi and R. Kanumgo and K. Katori and H. Kikunaga and H. Koura and H. Kudo and T. Ohnishi and A. Ozawa and N. Sato and T. Suda and K. Sueki and F. Tokanai and H. Xu and T. Yamaguchi and A. Yoneda and A. Yoshida and Yuliang Zhao",

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month = apr,

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doi = "10.1063/1.2713494",

language = "English (US)",

isbn = "0735403953",

volume = "891",

pages = "3--9",

booktitle = "TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI",

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TY - GEN

T1 - Experiments on synthesis of the heaviest element at RIKEN

AU - Morita, K.

AU - Morimoto, K.

AU - Kaji, D.

AU - Akiyama, T.

AU - Goto, S.

AU - Haba, H.

AU - Ideguchi, E.

AU - Kanumgo, R.

AU - Katori, K.

AU - Kikunaga, H.

AU - Koura, H.

AU - Kudo, H.

AU - Ohnishi, T.

AU - Ozawa, A.

AU - Sato, N.

AU - Suda, T.

AU - Sueki, K.

AU - Tokanai, F.

AU - Xu, H.

AU - Yamaguchi, T.

AU - Yoneda, A.

AU - Yoshida, A.

AU - Zhao, Yuliang

PY - 2007/4/4

Y1 - 2007/4/4

N2 - At the Institute of Physical and Chemical Research (RIKEN) a series of experiments studying the productions and their decays of the heaviest elements have been performed by using a gas-filled recoil ion separator GARIS. Results on the isotope of the 112th element, 277112, and on that of the 113th element, 278113, are reviewed. Tow decay chains which are assigned to be ones originating from the isotope 277112 were observed in the 208Pb(70Zn, n) reaction. Both chains consisted of four consecutive alpha decays followed by a spontaneous fission. The results provide a confirmation of the production and decay of the isotope 277112 reported by a research group at Gesellschaft für Schwerionenforschung (GSI), Germany, produced via the same reaction by using a velocity filter. Tow decay chains, both consisted of four consecutive alpha decays followed by a spontaneous fission, were observed also in the reaction 209Bi( 70Zn, n). Those are assigned to be the convincing candidate events of the decays of the isotope of the 113th element, 278113, and its daughter nuclei, 274Rg, 270Mt, 266Bh, and 262Db.

AB - At the Institute of Physical and Chemical Research (RIKEN) a series of experiments studying the productions and their decays of the heaviest elements have been performed by using a gas-filled recoil ion separator GARIS. Results on the isotope of the 112th element, 277112, and on that of the 113th element, 278113, are reviewed. Tow decay chains which are assigned to be ones originating from the isotope 277112 were observed in the 208Pb(70Zn, n) reaction. Both chains consisted of four consecutive alpha decays followed by a spontaneous fission. The results provide a confirmation of the production and decay of the isotope 277112 reported by a research group at Gesellschaft für Schwerionenforschung (GSI), Germany, produced via the same reaction by using a velocity filter. Tow decay chains, both consisted of four consecutive alpha decays followed by a spontaneous fission, were observed also in the reaction 209Bi( 70Zn, n). Those are assigned to be the convincing candidate events of the decays of the isotope of the 113th element, 278113, and its daughter nuclei, 274Rg, 270Mt, 266Bh, and 262Db.

KW - Mt

KW - Rg

KW - Confirmation of 112

KW - Gas-filled recoil separator

KW - New isotopes 113

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U2 - 10.1063/1.2713494

DO - 10.1063/1.2713494

M3 - Conference contribution

AN - SCOPUS:33947713421

SN - 0735403953

SN - 9780735403956

VL - 891

SP - 3

EP - 9

BT - TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI

T2 - TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI

Y2 - 5 September 2006 through 8 September 2006

ER -

Experiments on synthesis of the heaviest element at RIKEN

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