Diagonal Matrix Elements of the Effective Hamiltonian for $K^{0}-\bar{K}^{0} $ System in One Pole Approximation

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43362We study the properties of time evolution of the $K^{0}-\bar{K}^{0} $ system in spectral formulation. Within the one--pole model we find the exact form of the diagonal matrix elements of the effective Hamiltonian for this system. It appears that, contrary to the Lee--Oehme--Yang (LOY) result, these exact diagonal matrix elements are different if the total system is CPT--invariant but CP--noninvariant.21 pages, LaTeX, new comments and references addedHigh Energy Physics - PhenomenologyDiagonal Matrix Elements of the Effective Hamiltonian for $K^{0}-\bar{K}^{0} $ System in One Pole Approximationtext