-delayed Proton Decay of 89Ru
Li Zhankui - Xu Shuwei - Xie Yuanxiang - Yu Yong - Wang Chunfang - Xing Ianping - Pan Qiangyan - Hu Qingyuan - Li Shihong - Chen Hongyan - Zhang Tianmei
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, P.R. China
Received: 28 April 1999 / Revised version: 20 May 1999 Communicated by J. Äystö
A -delayed proton activity with a half-life of 1.2 0.2 s was assigned to 89Ru on the basis of a p-(X) coincidence measurement in the reaction of 58Ni (36Ar, 2p3n ) using a He-jet tape transport system. The measured delayed-proton spectrum of 89Ru and relative proton branching ratios to the low-lying states in 88Mo were compared with statistical model calculations.
23.40.-s decay; double decay; electron and muon capture - 21.10.Tg Lifetimes - 27.50.+e