Experiments on synthesis of the heaviest element at RIKEN

被引：0

作者：

Morita, K. ^{[1
]}

Morimoto, K. ^{[1
]}

Kaji, D. ^{[1
]}

Akiyama, T. ^{[1
,2
]}

Goto, S. ^{[3
]}

Haba, H. ^{[1
]}

Ideguchi, E. ^{[4
]}

Kanumgo, R. ^{[1
]}

Katori, K. ^{[1
]}

Kikunaga, H. ^{[1
]}

Koura, H. ^{[5
]}

Kudo, H. ^{[6
]}

Ohnishi, T. ^{[1
]}

Ozawa, A. ^{[7
,8
]}

Sato, N. ^{[1
]}

Suda, T. ^{[1
]}

Sueki, K.

Tokanai, F. ^{[9
,10
]}

Xu, H.

Yamaguchi, T. ^{[2
]}

Yoneda, A. ^{[1
]}

Yoshida, A. ^{[1
]}

Zhao, Y. -L. ^{[11
]}

机构：

[1] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan

[2] Saitama Univ, Dept Phys, Saitama 3388570, Japan

[3] Niigata Univ, Ctr Instrumental Anal, Tokai, Ibaraki 9502181, Japan

[4] Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan

[5] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[6] Niigata Univ, Dept Chem, Niigata 9502181, Japan

[7] Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan

[8] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[9] Yamagata Univ, Dept Phys, Yamagata 9908560, Japan

[10] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[11] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI | 2007年 / 891卷

关键词：

confirmation of (277)112; new isotopes (278)113; (274)Rg; and (270)Mt; gas-filled recoil separator;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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, (277)112, and on that of the 113th element (278)113, are reviewed. Tow decay chains which are assigned to be ones originating from the isotope (277)112 were observed in the Pb-201(Zn-70, 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 (277)112 reported by a research group at Gesellschaft fur 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 Bi-209(Zn-70, n). Those are assigned to be the convincing candidate events of the decays of the isotope of the 113th element (278)113, and its daughter nuclei, (274)Rg, (270)Mt, (266)Bh, and (262)Db.

引用

页码：3 / +

页数：2

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