A mass spectrum of the form m~ = M2 = Ml (M1 + |al |) is derived, where a l is the imaginary part of the l th singularity in the complex energy plane of a T-matrix which describes the interaction of a particle of initial rest mass m with a potential V(x, t), where V(x, t) = 0 in the limit |t| -> oo. This spectrum is found to give, within 1%, the mass of all baryons less than or equal to the mass of the rr if m is taken as 1747 MeV and a1l is a small integral multiple of the K and pi meson masses. Comparison to the Gell-Mann, Okubo formula relates these integers to the hypercharge and the isotopic spin. The analysis proposed by R. L. Lander is used to show that the results can have statistical significance.
Hammer, Charles L. and Weber, Thomas A., "A mass formula for the baryon mass spectrum" (1965). Ames Laboratory Technical Reports. 95.