Implications for new physics from (B)over-bar-0→π0π0 and B-0→K-0(K)over-bar0

被引：3

作者：

Cheng, Jian-Feng ^{[1
]}

Gao, Yuan-Ning

Huang, Chao-Shang

Wu, Xiao-Hong

机构：

[1] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China

[2] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China

[3] Korea Inst Adv Study, Sch Phys, Seoul 130722, South Korea

来源：

PHYSICS LETTERS B | 2006年 / 637卷 / 4-5期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physletb.2006.04.052

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have analyzed the (B) over bar (0) -> pi(0)pi(0) puzzle in three kinds of models beyond the standard model (SM). It is shown that the minimal flavor violation (MFV) models, the minimal supersymmetric standard model (MSSM), and the two Higgs doublet models (2HDM) I and II cannot give an explanation of the (B) over bar (0) -> pi(0)pi(0) puzzle within la experimental bounds and the model III 2HDM can explain the puzzle without a conflict with other experimental measurements. If the constraint on C-8g from b -> sg is not imposed, for all kinds of insertions considered there are regions of parameter space, where the scalar quark mass is larger (much larger) than the gluino mass in the case of LR or RL (LL or RR), in which the puzzle can be resolved within 1 sigma experimental bounds. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：260 / 265

页数：6

共 50 条

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