Weak (EC+ β ) decay branch ofFr.

Authors :: Xu, Shuwei
Xie, Yuanxiang
Guo, Yingxiang
Ma, Ruichang
Ge, Yuanxiu
Lee, Zhankui
Wang, Chunfang
Guo, Bing
Xing, Jianping
Zhang, Tianmei
Zhu, Shaofei
Xu, Wang
Source :: Zeitschrift für Physik A Hadrons & Nuclei; 1996, Vol. 354 Issue 1, p343-344, 2p
Publication Year :: 1996
Abstract: Fr has been produced by irradiation ofAu withO,and studied using a He-jet recoil tape transport system.A decay scheme is proposed for the first time,based on X-γ and γ-γ coincidence measurements,which takes account of 20 observed γ-rays. The branching ratio for (EC+ β ) decay ofFr has been estimated to be 3.0±1.5%. Five members of low-lying states inRn can be explained with the configuration [(Rn 2)( νf5/2)]. [ABSTRACT FROM AUTHOR]