On SU(5) Grand Unified Models with Extra Symmetries and their Experimental Testability

具有额外对称性的SU(5)大统一模型及其实验可检验性

• 批准号: 22KJ1022
• 负责人: HOR ShihWen
• 金额: $ 1.6万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KJ1022/
• 关键词: grand unified theories; supersymmetry; Nambu-Goldstone Higgs; global symmetry

In this year, I have been working on Nambu-Goldstone (NG) Higgs grand unified theories (GUT) models. We studied supersymmetric (SUSY) SU(5) GUT model with a global SU(6) symmetry including SU(5) as a subgroup to explain Higgs as NG Higgs particles and to solve the doublet-triplet splitting problem. We used renormalization group equations to represent the GUT parameters by the SUSY parameters and calculated the proton decay with different soft-SUSY-breaking scenarios.I am also doing another project about the calculation of proton decay using chiral perturbation theory. We are trying to use chiral perturbation theory to improve the results of proton decays for different channels. It could help to connect the experimental bounds to theoretical predictions to test GUT models.

今年，我一直在研究Nambu-Goldstone（NG）希格斯大统一理论（GUT）模型。为了解释Higgs粒子是NG Higgs粒子，解决双重态-三重态分裂问题，我们研究了具有SU（5）子群的整体SU（6）对称性的超对称SU（5）GUT模型.我们使用重整化群方程来表示超对称参数的大统一理论参数，并计算了不同超对称软破缺情形下的质子衰变。我还在做另一个关于用手征微扰理论计算质子衰变的项目。我们正试图利用手征微扰理论来改进不同通道的质子衰变结果。它可以帮助将实验边界与理论预测联系起来，以测试GUT模型。

项目成果

Minimal Nambu-Goldstone-Higgs model in supersymmetric SU(5) revisited

• DOI: 10.1103/physrevd.107.035016
• 发表时间: 2022-10
• 期刊: Physical Review D
• 影响因子: 5
• 作者: K. Hamaguchi;S. Hor;N. Nagata

R-symmetric flipped SU(5)

• DOI: 10.1007/jhep11(2020)140
• 发表时间: 2020-08
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: K. Hamaguchi;S. Hor;N. Nagata

Nambu-Goldstone Higgs Models in SU(5) GUT

SU(5) GUT 中的南部-戈德斯通希格斯模型

• 发表时间: 2023
• 作者: Hamaguchi Koichi;Hor Shihwen;Nagata Natsumi;Shihwen Hor
• 通讯作者: Shihwen Hor

Nambu-Goldstone Higgs Models in SU(5)

SU(5) 中的南部-戈德斯通希格斯模型

• 发表时间: 2022
• 作者: Hamaguchi Koichi;Hor Shihwen;Nagata Natsumi;Shihwen Hor;Shihwen Hor;Shihwen Hor
• 通讯作者: Shihwen Hor