Experiments on synthesis of the heaviest element at RIKEN

	Experiments on synthesis of the heaviest element at RIKEN
	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
	2007
关键词	confirmation of (277)112 new isotopes (278)113 (274)Rg and (270)Mt gas-filled recoil separator
卷号	891
页码	3-+
英文摘要	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.
会议录	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
会议录出版者	AMER INST PHYSICS
会议录出版地	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
语种	英语
WOS研究方向	Physics
WOS记录号	WOS:000245742800001
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57204]
专题	中国科学院近代物理研究所
通讯作者	Morita, K.
作者单位	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
推荐引用方式 GB/T 7714	Morita, K.,Morimoto, K.,Kaji, D.,et al. Experiments on synthesis of the heaviest element at RIKEN[C]. 见:.