Chargino contributions in light of recent ε′/ε

被引：30

作者：

Endo, Motoi ^{[1
,2
]}

Mishima, Satoshi ^{[1
]}

Ueda, Daiki ^{[2
]}

Yamamoto, Kei ^{[1
]}

机构：

[1] KEK, IPNS, Theory Ctr, Tsukuba, Ibaraki 3050801, Japan

[2] Grad Univ Adv Studies Sokendai, Tsukuba, Ibaraki 3050801, Japan

来源：

PHYSICS LETTERS B | 2016年 / 762卷

关键词：

FALSE VACUUM; DECAY; FATE;

D O I：

10.1016/j.physletb.2016.10.009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, the standard model prediction of epsilon'/epsilon was improved, and a discrepancy from the experimental results was reported at the 2.9 sigma level. We study the chargino contributions to Z penguin especially with the vacuum stability constraint. The vacuum decay rate is investigated, and it is shown that the discrepancy can be explained if superparticles are lighter than 4-6TeV. Correlations with B(K-L ->pi(0) nu(nu) over bar) and other experimental constraints are also discussed. (C) 2016 The Author(s). Published by Elsevier B.V.

引用

页码：493 / 497

页数：5

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