CP violation in the kaon system in a supersymmetric SU(5) model with seesaw-induced neutrino masses -: art. no. 095012

被引：28

作者：

Akama, N ^{[1
]}

Kiyo, Y ^{[1
]}

Komine, S ^{[1
]}

Moroi, T ^{[1
]}

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

来源：

PHYSICAL REVIEW D | 2001年 / 64卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.64.095012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

CP violations in the kaon system are studied in the supersymmetric SU(5) model with right-handed neutrinos. We pay special attention to the renormalization group effect on the off-diagonal elements of the squark mass matrices. In particular. if the Yukawa couplings and mixings in the neutrino sector are sizable, off-diagonal elements of the right-handed down-type squark mass matrix are generated, which affect CP and flavor violations in decay processes of the kaon. We calculate supersymmetric contributions to epsilon (as well as Deltam(K)), Br(K-L-->pi (o)nu<(<nu>)over bar>), and epsilon'/epsilon in this framework. We will see that the supersymmetric contribution to the epsilon parameter can be as large as (and in some cases. larger than) the experimentally measured value. We also discuss its implication to future tests of the unitarity triangle of the Kobayashi-Maskawa matrix.

引用

页数：17

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