Study on phenomenological aspects in superstring theory

超弦理论中现象学方面的研究

• 批准号: 20540266
• 负责人: KOBAYASHI Tatsuo
• 金额: $ 2.75万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20540266/
• 关键词: 素粒子(理論); 超弦理論; 標準模型; 超対称性; フレーバー

We have studied four-dimensional low-energy effective field theory, derived from superstring theory, in particular heterotic string theory on the orbifolds and magnetized/intersecting brane models. We have studied Abelian and non-Abelian discrete symmetries, which appear in these string models. Also we have studied their anomalies and found that the universal relations among certain anomalies. Furthermore, by explicit string computations we have shown stringy coupling selection rules, which seem to be difficult to understand from the symmetries of low-energy effective field theories.

我们研究了由超弦理论衍生而来的四维低能有效场理论，特别是关于轨道和磁化/交叉膜模型的异质弦理论。我们研究了这些弦模型中出现的阿贝尔和非阿贝尔离散对称性。并对它们的异常进行了研究，发现了某些异常之间的普遍关系。此外，通过显式弦计算，我们展示了从低能量有效场论的对称性中似乎难以理解的弦耦合选择规则。

项目成果

Revisiting superparticle spectra in superconformal flavor models

重新审视超共形风味模型中的超粒子光谱

• 发表时间: 2010
• 期刊: JHEP
• 作者: Matsumoto;R.;Tatsuo Kobayashi
• 通讯作者: Tatsuo Kobayashi

Fine tuning in general gauge mediation

• DOI: 10.1007/jhep01(2010)003
• 发表时间: 2009-10
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Tatsuo C. Kobayashi;Y. Nakai;R. Takahashi

Magnetized Orbifold Models

磁化 Orbifold 型号

• 发表时间: 2008
• 期刊: JHEP 809
• 作者: B. Adeva;et. al;Hiroyuki Abe
• 通讯作者: Hiroyuki Abe

Non-Abelian Discrete Flavor Symmetries from Magnetized/Intersecting Brane Models

来自磁化/相交膜模型的非阿贝尔离散风味对称性

• 发表时间: 2009
• 期刊: Nucl.Phys. B820
• 作者: H.Abe;K.S.Choi;T.Kobayashi;H.Ohki
• 通讯作者: H.Ohki

Symmetries and vanishing couplings in string-derived effective field theory

弦导出有效场理论中的对称性和消失耦合

• 发表时间: 2012
• 作者: T. Kobayashi;et al.;T.Kobayashi
• 通讯作者: T.Kobayashi