权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

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.

自从我在2001年发现超对称大统一理论（SUSY GUT）中最严重的问题——二重态-三重态分裂问题可以在一个自然假设下解决，即对称性允许的所有项都用O(1)系数引入时，我们重新考虑了标准模型或SUSY GUT中的各种问题，我们发现各种问题都可以在相同的自然假设下以非平凡的方式解决。然后我们就得到了一个超越标准模型的自然、简单且有前景的场景。这个场景由3个独立的想法组成。 “反常U(1) GUT”、“E6统一群和水平对称性”、“轻希格斯扇区”。该基金支持的结果是上述3个想法的后半部分。其中之一是我们根据E6统一群和水平对称性获得的奇特费米子质谱给出了一些预测。我们表明，在一些合理的假设下，在不久的将来，轻子味道违规实验中可以发现与标准模型预测的差异，并计算了定量预测。我们现在正在研究这种情况下 B 衰变中 CP 破坏的预测。有趣的结果之一是我们发现了上面的第三个想法，并且通过详细的计算我们确认了这种可能性是现实的。在 SUSY 理论中，我们知道存在一个小层次问题，即需要进行微调才能获得比 LEP 实验获得的下界更大的希格斯质量。我们针对该问题提出了一个有趣的解决方案并讨论了预测。下面我们仅列出已发表的论文。我们获得了尚未发表的各种结果。我们计划在不久的将来出版这些有趣的作品。

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