The origin of elementary particle interaction

基本粒子相互作用的起源

• 批准号: 06302020
• 负责人: SANDA Ichiro
• 金额: $ 7.68万
• 依托单位: NAGOYA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06302020/
• 关键词: CP violation; B meson; B factory; GUT; SUSY; KM matrix; NNI; Mass matrix; 湯川結合定数; 大統一理論; 超対称理論; 超弦理論; ブラックホール; クォークの質量; KM行列; 電弱対称性; B中間子; CPの破れ

1) The origin of CP violationWhile observed CP violation in K decay is only 0.2%, the KM model predicts nearly 100% CP violating effects in B decays. To understand the origin of CP violation it is crucial to discover this large CP violation. To achieve this goal, large number of B mesons must be created and the decay modes must be studied. At present B factory is being constructed at KEK and at SLAC.Both laboratories are competing against each other with the top level technology and physics. As a member of the Japanese high energy community we hope to see KEK discover CP violation first. To achieve this goal, we have initiated a study group to support this activity at KEK.The origin of quark massesA) Within the framework of SUSY GUT,Georgi-Jarlskog mass matrix was studied. The result of this study was that G-J matrix does not adequately explain the values of the KM matrix and the quark mass spectrum. How to get phases in to the mass matrix at the GUT scale is an important topic of the future study.B) The NNI formGeneral quark matrices have 36 parameters. It has been shown that when they are transformed to the NNI form, a general mass matrices can be written in terms of 12 parameters. Out of these, 6 can be fixed with 6 quark masses. We have succeeded in fixing 4 other parameters using the KM matrix.

1）CP违规的起源在K衰减中观察到的CP违规仅为0.2％，KM模型预测B衰减中近100％违反CP的影响。要了解违反CP的起源，发现这种大型CP违规至关重要。为了实现这一目标，必须创建大量的B介子，并且必须研究衰减模式。目前，B工厂正在KEK和SLAC建造。两者的实验室正在与顶级技术和物理学相互竞争。作为日本高能社区的成员，我们希望首先看到Kek发现CP违规。为了实现这一目标，我们成立了一个研究小组，以支持Kek的这一活动。在Susy Gut的框架内，研究了Georgi-Jarlskog Mass Matrix。这项研究的结果是，G-J矩阵不能充分解释KM矩阵和夸克质量谱的值。如何在肠道量表上获得质量矩阵是未来研究的一个重要主题。B）NNI FormGeneral Quark矩阵具有36个参数。已经表明，当它们转换为NNI形式时，可以用12个参数编写一般的质量矩阵。其中，可以用6个夸克质量固定6个。我们已经成功地使用了KM矩阵来固定其他4个参数。

项目成果

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S.Kanemura 等人：“将希格斯玻色子衰变为二重态模型中的纵向 W 玻色子对的辐射校正。”

A.I.Sanda et al.: "A New Method of Determing |V_<ub>|/|V_<ts>| by the Processes B→pl anti-Neutrino and B→K^*." Phys.Rev.Lett.75. 2807-2910 (1995)

A.I.Sanda 等人：“通过过程 B→pl 反中微子和 B→K^* 确定 |V_<ub>|/|V_<ts>| 的新方法。Phys.Rev.Lett.75。” 2807-2910 (1995)

K.Kimura et al.: "Triviality Bound of Linear -Model with Finite Pion Mass." Modern Physics Letters A. 9. 2587-2597 (1994)

K.Kimura 等人：“具有有限 Pion 质量的线性模型的琐碎界限。”

T.Kubota et al.: "Effective Topological Theory for Gravitational Anyon Scattering at Ultra-High Energies." Prog.Theor.Phys.94. 637-648 (1995)

T.Kubota 等人：“超高能量引力任意子散射的有效拓扑理论”。

T.Yoshikawa,H.Takata,T.Morozumi: "Effective Lagrangian for a Technicolor Model without ltaiet custodial symmetry" Prog.Theor.Phys.92. 353-376 (1994)

T.Yoshikawa、H.Takata、T.Morozumi：“无 ltaiet 保管对称性的 Technicolor 模型的有效拉格朗日”Prog.Theor.Phys.92。