The Structure and Properties of Muons and Pions in the Exponentially Damped Breit-Pauli-Schrödinger (XBPS) Model

The Exponentially-damped Breit-Pauli-Schrödinger (XBPS) model of elementary particles is applied to the description of muons, pions and kaons. Based on the products of their decay processes, the compositions of these meta-stable particles are given in terms of protons, electrons, and neutrinos and their antiparticles. Claims that there is more than one flavor of neutrino are examined, including the theory of neutrino oscillations. Arguments for and against concluding that the neutrinos are massless are discussed.