| 人工色动力学对Wb耦合的修正 |
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| 引用本文： | 岳崇兴,杨正涛,黄金书,鲁公儒.人工色动力学对Wb耦合的修正[J].中国物理 C,1998(6). |
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| 作者姓名： | 岳崇兴 杨正涛 黄金书 鲁公儒 |
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| 作者单位： | 河南师范大学物理系，郑州大学物理系 |
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| 基金项目： | 国家自然科学基金,河南省教委自然科学基金 |
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| 摘 要： | 考虑了一代人工色（ＯＧＴＣ）模型和ｔｏｐｃｏｌｏｒ援助的多标度人工色（ＴＯＰＣＭＴＣ）模型中的规范玻色子对Ｗｔｂ耦合的贡献。发现对角ＥＴＣ玻色子的交换对Ｗｔｂ耦合没有直接贡献，运用ＬＥＰ给出的Ｒｂ的数值，发现对于一定范围内的参数值来说，ＯＧＴＣ模型中的ＥＴＣ规范玻色子交换和ＴＯＰＣＭＴＣ模型中的ＥＴＣ规范玻色子交换和ｃｏｌｏｒｎ交换对ＣＫＭ矩阵元Ｖｔｂ的贡献都是相当大的，Ｖｔｂ可能被费米实验室ＴｅｖａｔｒｏｎＲｕｎ３探测到。
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| 关 键 词： | 人工色动力学，多标度人工色模型，Wb耦合 |
Technicolor Dynamics Corrections to Wtb Coupling |
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| Yue Chongxing Yang Zhengtao Huang Jinshu Lu Gongru.Technicolor Dynamics Corrections to Wtb Coupling[J].High Energy Physics and Nuclear Physics,1998(6). |
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| Authors: | Yue Chongxing Yang Zhengtao Huang Jinshu Lu Gongru |
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| Institution: | Yue Chongxing Yang Zhengtao Huang Jinshu Lu Gongru 1 |
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| Abstract: | We consider the contributions of new gauge bosons to Wtb cuopling in one generation technicolor (OGTC) model and topcolor assisted multiscale technicolor (TOPCMTC) model. We find that the exchange of diagonal extended technicolor (ETC) gauge boson has no contribution to Wtb coupling. Using the LEP value of Rb, we calculate the corrections to the CKM matrix element Vtb which arise from the sideways ETC gauge boson in OGTC model and the sideways ETC gauge bosons and colorn exchange in TOPCMTC model. We find that the Vtb is signficantly large for a certain set of the parameters of either OGTC model or TOPCMTC model which might be detected in the Fermilab Tevatron Run 3 experiments. |
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| Keywords: | technicolor dynamics multiscale technicolor model Wtb coupling |
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