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非因子化方法研究B^-→π~0π^-衰变过程

CALCULATION ON BRANCH RATIO OF B^-→π^-π~0 DECAY
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摘要 本文用 QCD因子化和光锥 QCD求和规则系统地计算了 B- →π0 π- 衰变过程的强子矩阵元和分支比 ,其计算结果与实验相一致 . In this paper, the hadronic matrix element and branch ratio are calculated in QCD factorization and light cone QCD sum rules in B -→π -π 0 decays, and the result is in agreement with the experiment data.
出处 《南开大学学报(自然科学版)》 CAS CSCD 北大核心 2004年第1期118-121,共4页 Acta Scientiarum Naturalium Universitatis Nankaiensis
基金 安徽省教育厅自然科学基金资助项目( 2 0 0 4kj3 2 3 )
关键词 B介子衰变 强子矩阵元 分支比 B meson decay hadronic matrix element branch ratio
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参考文献11

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