4-Be-8


Spin 
     Level energy(keV)   Spin & Parity       
     ----------------------------------------
       ground state      0+
Mass (The Ame2012 atomic mass evaluation (II) by M.Wang, G.Audi, A.H.Wapstra, F.G.Kondev, M.MacCormick, X.Xu, and B.Pfeiffer Chinese Physics C36 p. 1603-2014, December 2012) 
     8.005305102 ± 0.000000037 (amu)  [mass excess = 4941.671 ± 0.035 (keV) ]
Beta-decay energy (calculated as M(A,Z)-M(A,Z+1), taken from Ame2012) 
     -17979.906 ± 1.001 (keV)
Evaluated Data Libraries 
     Links to the libraries.

Parent Nuclides by Reactions in JENDL-4.0 
     Be-  9 (Z=  4, A=  9), MT= 16 (n,2n)
     B - 11 (Z=  5, A= 11), MT= 33 (n,nt)