Implications of scaling for the proton-neutron mass difference

摘要: Abstract We assume that the structure functions V1, V2 scale and do not contain fixed poles at integer values of α = 0, 1, 2, …. This leads to a logarithmically divergent self-energy. include tadpole term in Lagrangian. The part self-energy is absorbed renormalization coupling constant. Using available data we then carefully evaluate low- high-energy contributions electromagnetic mass shift nucleons. conclusions agree with model Coleman Glashow. In quark-model language our result corresponds mu ≅ 4 MeV, md 6 MeV ms 135 for masses up, down strange quarks, respectively.