Solar Neutrino Problem and Supersymmetric Grand Unified Theories

太阳中微子问题与超对称大统一理论

• 批准号: 08640374
• 负责人: TAKASUGI Eiichi
• 金额: $ 0.7万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08640374/
• 关键词: Solar Neutrino; Atomospheric Neutrino; Neutrino Mixings; MASS; Composite Neutrino; Supersymmetry; Grand Unified Theories; 質合; ニュートリノ; マヨラナ型質量項

1. We examined how to reconstruct quark mass matrices in the NNI form from the experimental data.We made an attempt to explain masses and mixing of quarks and lep-tons simultaneously in supersymmetric grand unified theories. In par-ticular, we consider a SUSY SO(10) model with two 10 dimensional Higgs and one 126 Higgs multiplets. In this model, the left-handed neutrino mass matrix is expressed in terms of quark and charged lepton mass matrices. With only two adjustable parameters, we successfully explain the observed pattern of neutrino masses and mixings.2. We explored the possibiltiy of composite neutrinos and their consquences. We derived the constraint from the neutrinoless double beta decay and also analyzed e^-e^- * W^-W^- scattering with the double beta decay constraint.3. We made research on the flavor violation physics in the supersymmetric models. In particular, we analyzed the b * sll decay and mu * egamma decays.

1.我们研究了如何从实验数据重建NNI形式的夸克质量矩阵，试图在超对称大统一理论中同时解释夸克和轻子的质量和混合。特别地，我们考虑了具有两个10维Higgs和一个126维Higgs多重态的SUSY SO（10）模型.在这个模型中，左手中微子的质量矩阵用夸克和带电轻子的质量矩阵表示。仅用两个可调参数，我们成功地解释了中微子质量和混合的观测模式.我们探讨了复合中微子的可能性及其后果。我们从无中微子双β衰变出发，推导出了双β衰变约束，并分析了双β衰变约束下的e^-e^- * W^-W^-散射.研究了超对称模型中的味破缺物理。特别地，我们分析了B * sll衰变和mu * egamma衰变。

项目成果

J.Hisano, D.Nomura, Yakaba, Y.Shimizu, M.Tanaka: "Enlancement of M【surface chemistry arrow】er mithe gupergymetic SU(5) GUT at " Physical Review. D58. 116010-1-6 (1998)

J.Hisano、D.Nomura、Yakaba、Y.Shimizu、M.Tanaka：“M【表面化学箭头】er mithe gupergymetic SU(5) GUT 的Enlancement”，《物理评论》D58。

T.Goto et.al.: "b→4Sll^^- in the Minimel Supergravity Model" Phys.Rev.D55. 4273-4289 (1997)

T.Goto 等人：“Minimel 超重力模型中的 b→4Sll^^-”Phys.Rev.D55 (1997)。

Eiichi Takasugi: "The Rephasing Freedon and the NNI Form of Quark Mass Matrices" Progress of Theoretical Physics. Vo.98, No.1. 177-185 (1997)

Eiichi Takasugi：“重新定相弗里顿和夸克质量矩阵的 NNI 形式”理论物理进展。

EIICHI TAKASUGI: "Double Beta Decay Constraint on Composite Neutrinos" Prog.Theor.Phys.98. 977-985 (1997)

EICHI TAKASUGI：“复合中微子的双贝塔衰变约束”Prog.Theor.Phys.98。

Y.Okada et.al.: "b→Sll^^- Process and Multi-Higgs Doublet Model" Phys.Lett.B405. 297-304 (1997)

Y.Okada 等人：“b→Sll^^- 过程和多重希格斯双峰模型”Phys.Lett.B405 (1997)。