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北美退伍军人节(Veterans Day),12 日无更新
arXiv 0806.0583hep-ph
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QCD中罕见的$B_c \to D_{s,d}^{*} l^+ l^-$衰变分析

Analysis of the Rare $B_c \to D_{s,d}^{*} l^+ l^-$ Decays in QCD

K. Azizi, F. Falahati, V. Bashiry, S. M. Zebarjad

摘要:

在三点QCD求和规则的框架下研究了稀有的$B_c \to D_{s,d}^{*} l^+ l^-$衰变。考虑到胶子凝聚对关联函数的修正,计算了与这些跃迁有关的形状因子。还评估了这些衰变的总衰变宽度和分支比。分支比的计算结果与夸克模型的计算结果一致。

英文摘要:

The rare $B_c \to D_{s,d}^{*} l^+ l^-$ decays are investigated in the framework of the three point QCD sum rules approach. Considering the gluon condensate corrections to the correlation function, the form factors relevant to these transitions are calculated. The total decay width and branching ratio for these decays are also evaluated. The results for the branching ratios are in good agreement with the quark models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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