Abstract
An attempt has been made to synthesize the extremely neutron-rich isotope in the nuclear reaction 44 MeV/nucleon +n/rTa. Use was made of magnetic separation and identification methods including time-of-flight and ΔE,E measurements. The nucleus appears to be unstable against particle emission since no events attributable to the nucleus were observed at a level one order of magnitude lower than that predicted from the extrapolated yields. The previously unobserved isotope was found to be particle stable and the isotope particle unstable. Neutron-separation energies calculated with different models are tabulated.
- Received 31 October 1989
DOI:https://doi.org/10.1103/PhysRevC.41.937
©1990 American Physical Society