Alpha-decay of neutron-deficient 200Fr and heavier neighbours

被引：36

作者：

De Witte, H

Andreyev, AN

Dean, S

Franchoo, S

Huyse, M

Ivanov, O

Köster, U

Kurcewicz, W

Kurpeta, J

Plochocki, A

Van de Vel, K

Van de Walle, J

Van Duppen, P

机构：

[1] Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Louvain, Belgium

[2] Univ Liverpool, Dept Phys, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England

[3] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[4] CERN, ISOLDE, CH-1211 Geneva 23, Switzerland

[5] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

来源：

EUROPEAN PHYSICAL JOURNAL A | 2005年 / 23卷 / 02期

关键词：

D O I：

10.1140/epja/i2004-10077-9

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A new measurement of the Fr-200 alpha-decay half-life, with improved accuracy compared to previous measurements, has been carried out at the Isolde-CERN on-line mass separator. A half-life of 49(4) ms has been obtained, which is substantially different from earlier literature values. For the At-196 daughter decay, a half-life of 389(54) ms and an alpha branching ratio b(alpha) = 94(5)% were measured. In addition, the half-lives of Fr-201,Fr-203,Fr-205 and At-197,At-199 are reported.

引用

页码：243 / 247

页数：5

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