稀有衰变B0(Bs)→γv(-v)分支比的计算

来源 :高能物理与核物理 | 被引量 : 0次 | 上传用户：huangxinyu322

【摘要】

：

在标准模型中,三体稀有衰变B0(Bs)→γv(-v)只有通过箱图和企鹅图才可以发生.这个过程对于确定B介子的衰变常数及其波函数有着较重要的物理意义,由于这些衰变道的分支比较小,

【作者】

：

陈军肖侯召宇李营吕才典

【机构】

：

中国科学院高能物理研究所,河北师范大学物理科学与信息工程学院,石家庄铁道学院数学物理系,李营

【出处】

：

高能物理与核物理

【发表日期】

：

2004年期

【关键词】

：

波函数 B介子稀有衰变分支比衰变常量 wave function rare B decay branching ratio decay constant

【基金项目】

：

国家自然科学基金;

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论文部分内容阅读

在标准模型中,三体稀有衰变B0(Bs)→γv(-v)只有通过箱图和企鹅图才可以发生.这个过程对于确定B介子的衰变常数及其波函数有着较重要的物理意义,由于这些衰变道的分支比较小,因此也是探测新物理理论的比较好的场所.利用B介子强衰变确定的波函数,得到B0(Bs)→γv(-v)的分支比的数量级是10-9(10-8),这些结果可以在未来的实验上得到检验.

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稀有衰变B0(Bs)→γv(-v)分支比的计算

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