135Ba-Barium
135Ba has 56 protons and 79 neutrons.
135Ba is a stable isotope.
The mass excess of 135Ba is -87850.655 with an uncertainty of ±0.245.
The mass was measured using a Penning Trap and Nuclear Physics and the related equations include:
Influence Equations
59.1% 135Ba(n, γ)136Ba 1
35.3% 134Ba(n, γ)135Ba 2
5.6% 135Cs-135Ba 3
Reference
1. W. Gelletly, J.A. Moragues, M.A.J. Mariscotti, W.R. Kane (1969) 135Ba(n, γ) Reaction and Level Structure of 136Ba
Physical Review 181(4)
https://journals.aps.org/pr/abstract/10.1103/PhysRev.181.1682
2. B.K. Koene, R.E. Chrien, M. Yachim (1977)
Private communication to A.H. Wapstra in Feb
2. A. de Roubin, J. Kostensalo, T. Eronen, L. Canete, R.P. de Groote, A. Jokinen, A. Kankainen, D.A. Nesterenko, I.D. Moore, S. Rinta-Antila, J. Suhonen, M. Vilen (2020)
High-Precision Q-Value Measurement Confirms the Potential of 135Cs for Absolute Antineutrino Mass Scale Determination Physical Review Letters 124(22)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.222503