B介子稀有衰变对多标度人工色模型的限制 |
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引用本文: | 宋海珍,吕林霞. B介子稀有衰变对多标度人工色模型的限制[J]. 南都学坛, 2000, 20(3): 34-37 |
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作者姓名: | 宋海珍 吕林霞 |
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作者单位: | 南阳师专物理系,河南,南阳,473061 |
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基金项目: | 河南省教委自然科学基金资助项目(项目号 1999140013) |
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摘 要: | 在多标度人工色模型下计算了荷电PG玻色子对B介子稀有衰变B→Xs,dνν和Bs,d→l+ l-的贡献 ,抽出了描写新物理贡献的Co(xi)函数。计算表明 :K .Lane等人提出的多标度人工色模型与B介子稀有衰变的实验数据相矛盾
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关 键 词: | 分枝比 B介子稀有衰变 多标度人工色模型 |
文章编号: | 1002-6320(2000)03-0034-04 |
修稿时间: | 1999-12-14 |
Constraints on the Multiscale Walking Technicolor Model from Rare Decays of B Meson |
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Abstract: | In this paper,we calculate the contributions to the rare B-decays,B→X s,d ν ν (nu) and B s,d →l +l - from the unit charged technipions in the framework of the Multiscale Walking Technicolor Model.We separate the new funaction C New 0,which summarize the effects of the new physics beyond the SM.Within the parameter space,we find that the assumed masses of m p1 and m p8 in the multiscale walking Technicolor Model are excluded by the rare B-decay data. |
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Keywords: | ratio branching rare decays of B meson multiscale walking technicolor model |
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