RETRACTED: Observation of superheavy nuclei produced in the reaction of 86Kr with 208Pb (Retracted Article)

被引：194

作者：

Ninov, V

Gregorich, KE

Loveland, W

Ghiorso, A

Hoffman, DC

Lee, DM

Nitsche, H

Swiatecki, WJ

Kirbach, UW

Laue, CA

Adams, JL

Patin, JB

Shaughnessy, DA

Strellis, DA

Wilk, PA

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[2] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA

[3] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.83.1104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Following a prediction by Smolanczuk [Phys. Rev. C 59, 2634 (1999)], we searched for superheavy element formation in the bombardment of Pb-208 With 449-Mev Kr-86 ions. We have observed three decay chains, each consisting of an implanted heavy atom and six subsequent alpha decays, correlated in time and position. In these decay chains, a rapid (ms) sequence of high energy alpha particles (E-alpha greater than or equal to 10 MeV) indicates the decay of a new high-Z element. The observed chains are consistent with the formation of (293)118 and its decay by sequential alpha-particle emission to (289)116, (285)114, (281)112, (277)110, (273)Hs (Z = 108) and (269)Sg (Z = 106). The production cross section is 2.2(-0.8)(+2.6) pb.

引用

页码：1104 / 1107

页数：4

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