RENORMALIZATION-GROUP ANALYSIS OF CHARGED HIGGS EFFECTS IN EPSILON'-EPSILON FOR A HEAVY TOP QUARK

被引：22

作者：

BUCHALLA, G ^{[1
]}

BURAS, AJ ^{[1
]}

HARLANDER, MK ^{[1
]}

LAUTENBACHER, ME ^{[1
]}

SALAZAR, C ^{[1
]}

机构：

[1] MAX PLANCK INST PHYS & ASTROPHYS,WERNER HEISENBERG INST PHYS,W-8000 MUNICH 40,GERMANY

来源：

NUCLEAR PHYSICS B | 1991年 / 355卷 / 02期

关键词：

D O I：

10.1016/0550-3213(91)90116-F

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We perform the first renormalization group analysis of epsilon'/epsilon, epsilon and B0-B0BAR mixing in a two-Higgs doublet model including the effects of electroweak penguins. The impact of charged Higgs effects on epsilon'/epsilon can be sizable. Due to additional positive contributions to epsilon and additional negative contributions of Z0-penguin diagrams with charged Higgs exchanges to epsilon', the ratio-epsilon'/epsilon is generally substantially smaller than in the standard model. It can become negative at smaller values of m(t) congruent-to O(160 GeV) than found in the standard model.

引用

页码：305 / 329

页数：25

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