Building Natural Grand Unified Model, the Predictions, and Derivation from Superstring Theory

自然大统一模型的构建、超弦理论的预测和推导

基本信息

批准号：
16540247
负责人：
MAEKAWA NOBUHIRO
金额：
$ 1.73万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16540247/
关键词：
Grand unified theory Supersymmetry Horizontal Symmetry Lepton Flavor Violation the little hierarchy problem light Higgs B中間子自発的なCPの破れバリオン数異常U(1)強いCP問題 little hierarchy problem lepton flavor violation horizontal symmetry Sup

项目摘要

Since I found in 2001 that the doublet-triplet splitting problem, the most serious problem in the supersymmetric grand unified theory (SUSY GUT), can be solved under a natural assumption that all the terms allowed by the symmetry are introduced with O(1) coefficients, we have reconsidered the various problems in the standard model or in SUSY GUT We have found that various problems can be solved in the same natural assumptions in non-trivial way. Then we have obtained a natural, simple and promising scenario as beyond the standard model. This scenario consists of 3 independent ideas. "Anomalous U(1) GUT", "E6 unified group and horizontal symmetry", and "Light Higgs sector".The results supported by this fund are on the second half of the 3 ideas above. One of them is that we give some predictions from the peculiar sfermion mass spectrum obtained from E6 unified group and horizontal symmetry. We showed that under some reasonable assumptions, the discrepancy from the standard model predictions can be found in near future in lepton flavor violation experiments and we calculated the quantitative predictions. We are now studying the predictions for CP violation in B decay in this scenario. One of the interesting results is that we found the third idea in the above and by detailed calculations we confirmed the possibility can be realistic. In SUSY theories, the little hierarchy problem is known that a finetuning is required to obtain the larger Higgs mass than the lower bound obtained by LEP experiments. We proposed an interesting solution for the problem and discussed the predictions.We only list the published papers below. We obtained various results which have not been published yet. We have plans to publish these interesting works in near future.

Since I found in 2001 that the doublet-triplet splitting problem, the most serious problem in the supersymmetric grand unified theory (SUSY GUT), can be solved under a natural assumption that all the terms allowed by the symmetry are introduced with O(1) coefficients, we have reconsidered the various problems in the standard model or in SUSY GUT We have found that various problems can be solved in the same natural assumptions in non-trivial way.然后，我们获得了一个自然，简单和有希望的场景，因为超出了标准模型。这种情况包括3个独立思想。 “异常的U（1）肠”，“ E6统一组和水平对称性”和“ Light Higgs Sector”。该基金支持的结果在上面的3个想法中的下半部分。其中之一是，我们从E6统一组和水平对称性获得的特殊sfermion质谱中给出了一些预测。我们表明，在某些合理的假设下，在Lepton违规实验中可以在不久的将来发现与标准模型预测的差异，我们计算了定量预测。在这种情况下，我们正在研究B衰减中CP违规的预测。有趣的结果之一是，我们发现了上述第三个想法，通过详细的计算，我们证实了可能性是现实的。在SUSY理论中，众所周知，要获得比通过LEP实验获得的下限更大的希格斯质量需要填充的问题。我们为该问题提出了一个有趣的解决方案，并讨论了预测。我们仅列出以下已发表的论文。我们获得了尚未发布的各种结果。我们计划在不久的将来发布这些有趣的作品。

项目成果

期刊论文数量（16）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Lepton Flavor Violation in SUSY GUT Model with Non-universal Sfermion Masses

具有非通用费米子质量的 SUSY GUT 模型中的轻子味违规

DOI：
发表时间：
2007
期刊：
Physical Review D75
影响因子：
0
作者：
H.;Abe;T.;Higaki;T.;Kobayashi;Y.;Omura;Motoi Endo;Motoi Endo;Masako Bando;Masako Bando;Pyungwon Ko;Hiroyuki Abe;Hiroyuki Abe;S. -G. Kim
通讯作者：
S. -G. Kim

Solution for little hierarchy problem

小层级问题的解决方案