ep - p h / 98 07 39 9 v 1 1 6 Ju l 1 99 8 Soft Superweak CP Violation and the Strong CP Puzzle ∗
نویسنده
چکیده
We discuss a class of models in which CP is violated softly in a heavy sector adjoined to the standard model. Heavy-sector loops produce the observed CP violation in kaon physics, thus yielding a tiny and probably undetectable value for ǫ. All other CPviolating parameters in the effective low-energy standard model, including the area of the unitarity triangle and θ, are finite, calculable and can be made very small. These models offer a natural realization of superweak CP violation and can resolve the strong CP puzzle. Research supported in part by the National Science Foundation under grant PHY-9218167. [email protected] [email protected]
منابع مشابه
ar X iv : h ep - p h / 98 07 39 9 v 2 2 1 A ug 1 99 8 Soft Superweak CP Violation and the Strong CP Puzzle ∗ Howard
We discuss a class of models in which CP is violated softly in a heavy sector adjoined to the standard model. Heavy-sector loops produce the observed CP violation in kaon physics, thus yielding a tiny and probably undetectable value for ǫ. All other CPviolating parameters in the effective low-energy standard model, including the area of the unitarity triangle and θ, are finite, calculable and c...
متن کاملar X iv : h ep - p h / 98 12 39 9 v 1 1 6 D ec 1 99 8 1 The Tau Lepton : Particle Physics in a Nutshell
τ decays 5. Beyond the Standard Model 5.1 CP violation in hadronic τ decays 5.2 " Forbidden " decays.
متن کاملar X iv : h ep - p h / 98 08 47 2 v 1 2 9 A ug 1 99 8 UH - 511 - 913 - 98 August 1998 CP VIOLATION IN HYPERON DECAYS
The theory and phenomenology of CP violation in hyperon decays is summarized.
متن کاملar X iv : h ep - p h / 98 07 50 7 v 1 2 7 Ju l 1 99 8 Direct CP Violation in Angular Distribution of B →
We show that the study of certain observables in the angular distribution in B → J/ψK * provide clear test for CP vioaltion beyond the Standard Model. These observables vanish in SM, but in models beyond SM some of them can be large enough to be measured at B factories.
متن کاملar X iv : h ep - p h / 98 07 43 0 v 1 2 0 Ju l 1 99 8 FTUV 98 / 37 THE CP - CONSERVING DIRECTION
A symmetry transformation is well defined in the case of an invariant theory, being the corresponding operator undetermined otherwise. However, we show that, even with CP violation, it is possible to determine the CP transformation by separating the Lagrangian of the Standard Model in a CP-conserving and a CP-violating part, in a unique way, making use of the empirically known quark mixing hier...
متن کامل