Table 12. Neutral and primary energy levels of Sproton =415.165 MeV joined with Down boson

From

Gravity Based Integral Charge Quark and Higgs Super Symmetry

U. V. S. Seshavatharam, S. Lakshminarayana

Frontiers of Astronomy, Astrophysics and Cosmology. 2015, 1(2), 74-89