CP-Violation in the Renormalizable Theory of Weak Interaction

摘要: In a framework of the renormalizable theory weak interaction, problems CP-violation are studied. It is concluded that no realistic models exist in quartet scheme without introducing any other new fields. Some possible also discussed. When we apply interaction1l to hadron system, have some limitations on model. well known there exists, case triplet model, difficulty strangeness chang­ ing neutral current and model free from this difficulty. Fur­ thermore, Maki one present authors (T.M.) shown2l that, latter case, strong interaction must be chiral SU ( 4) X invariant as precisely conservation third component iso-spin 13 • addi­ tion these arguments, for realistic, CP-violating interactions should incorporated gauge way. This requirement will impose further itself. The purpose paper investigate problem. following, it shown above-mentioned cannot make fields when require following conditions: a) mass fourth member quartet, which call (, sufficiently large, b) con­ sistent with our well-established knowledge semi-leptonic processes. After ways bringing into We consider charge assignment Q, Q -1, -1 p, n, A. respectively, take same underlying group SUweak (2) SU(1) scalar doublet field cp those Weinberg's original model.1l Then, hadronic parts Lagrangian can devided way: