This notes describes the obsolete view that electron positron annihilation (EP) is generated from Compton scattering theory by cross over symmetry as in equations (5) and (6), so the obsolete view uses the same Eqs. (7) and (8) for both processes. It is shown that this results in the contradiction (19) and that the correct theory is Eq. (20), a theory of the type developed n previous notes for UFT247. The relativistic kinetic energy T of the electron appears on the right hand side of Eq. (20) and T is transmuted into many different processes, which are actually observed as energy peaks in particle colliders. UFT225 shows that there can be no confidence in the way in which these peaks are interpreted in the obsolete particle physics, so there is overwhelming justification for a completely new theory of particle physics which takes into account the duality equations of ECE theory, developed from de Broglie’s wave particle dualism.