在整个运动学范围内研究Bs→K跃迁形状因子

在整个运动学范围内研究B_s→K跃迁形状因子

尹新国¹, 谢远亮², 吴向尧¹, 郭义庆³

1. 淮北煤炭师范学院物理系, 淮北 235000; 2. 吉林大学物理学院, 长春 13 0023; 3. 中国科学院高能物理研究所, 北京 100039

收稿日期:2002-05-15 修回日期:1900-01-01 出版日期:2003-01-26 发布日期:2003-01-26
通讯作者: 尹新国

Researches on B_s→K Transition Form Factor in the Whole Kinematically Accessible Range

YIN Xin-guo¹, XIE Yuan-liang², WU Xiang-yao¹ , GUO Yi-qing³

1. Department of Physics, Huaibei Coal Mining Teachers College, Huaibei 235000, China;2. College of Physics, Jilin University, Changchun 130023, China; 3. Institute of High Energy Physics Academy of Science China, Beijing 100039, China

Received:2002-05-15 Revised:1900-01-01 Online:2003-01-26 Published:2003-01-26
Contact: YIN Xin-guo

摘要/Abstract

摘要： 用改进的光锥QCD求和规则研究在整个运动学范围内B_s→K跃迁形状因子, 通过构造新的关联函数, 消除了twist-3波函数的不确定性对计算结果的影响, 从而能更精确地抽取CKM矩阵元|V_ub|.

关键词: 改进的光锥QCD求和规则, 形状因子, CKM矩阵元

Abstract: The B_s→K transition form factor was studied by means of light cone QCD sum rule in the whole kinematically accessible range. We chose a new correlation to eliminate the effect from the twist-3 function, thus, we can extract the CKM matrix element |V_ub| precisely.

Key words: light cone QCD sum rule, form factor, CKM matrix element

中图分类号:

O572.33

尹新国, 谢远亮, 吴向尧, 郭义庆. 在整个运动学范围内研究B_s→K跃迁形状因子[J]. J4, 2003, 41(01): 73-76.

YIN Xin-guo, XIE Yuan-liang, WU Xiang-yao , GUO Yi-qing. Researches on B_s→K Transition Form Factor in the Whole Kinematically Accessible Range[J]. J4, 2003, 41(01): 73-76.

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