57-La-148  basic  fission yield  element

57-lanthanum-148 Atomic Mass: 147.9321912 +- 0.0001369 amu Excess Mass: -63163.483 +- 127.500 keV Binding Energy: 1213125.115 +- 127.500 keV Beta Decay Energy: B- 7262.354 +- 51.191 keV "The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995. Spin: (2-) Half life: 1.428 s Mode of decay: Beta to Ce-148 Decay energy: 7.260 MeV Mode of decay: Beta + Neutron to Ce-147 Branch ratio: 0.15 % Decay energy: 0.950 MeV Possible parent nuclides: Beta from Ba-148 Beta + N from Ba-149 R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)