https://doi.org/10.1140/epjad/i2005-06-033-1
ENAM 2004
Half-life measurement of excited states in neutron-rich nuclei
1
Physics Department, Vanderbilt University, 37235, Nashville, TN, USA
2
Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA
3
Department of Physics, Tsinghua University, 100084, Beijing, PRC
4
Lawrence Livermore National Laboratory, 94550, Livermore, CA, USA
5
Idaho National Engineering and Environmental Laboratory, 83415, Idaho Falls, ID, USA
6
Flerov Laboratory for Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Russia
7
Universidade Federal do Rio de Janeiro, CP 68528, RG, Brazil
* e-mail: jae-kwang.hwang@vanderbilt.edu
Received:
28
October
2004
Accepted:
18
February
2005
Published online:
20
April
2005
Half-lives (T 1/2) of several states which decay by delayed γ transitions were determined from time-gated triple γ coincidence method. We determined, for the first time, the half-life of 330.6 + x state in 108Tc and the half-life of 19/2- state in 133Te based on the new level schemes. Five half-lives of 95, 97Sr, 99Zr, 134Te and 137Xe are consistent with the previously reported ones. These results indicate that this new method is useful for measuring the half-lives.
PACS: 21.10.Tg Lifetimes – / 25.85.Ca Spontaneous fission – / 27.60.+j 90 ⩽ A ⩽ 149 –
© Società Italiana di Fisica and Springer-Verlag, 2005