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arXiv 1411.7232hep-phhep-ex
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$B_s$介子弱衰变的相对论描述

Relativistic description of weak decays of $B_s$ mesons

R. N. Faustov, V. O. Galkin

摘要:

在QCD激发的相对论夸克模型框架下计算了半轻子和稀有$B_s$衰变的分支分数。弱$B_s$跃迁的形状因子用初末介子波函数在整个可达运动学范围内的重叠积分表示。的形状因子的动量传递依赖明确地确定没有额外的模型假设和外推。所得结果与实验数据吻合良好。

英文摘要:

The branching fractions of the semileptonic and rare $B_s$ decays are calculated in the framework of the QCD-motivated relativistic quark model. The form factors of the weak $B_s$ transitions are expressed through the overlap integrals of the initial and final meson wave functions in the whole accessible kinematical range. The momentum transfer dependence of the form factors is explicitly determined without additional model assumptions and extrapolations. The obtained results agree well with available experimental data.

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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