标题： 微扰QCD对半轻子$b \to cτ\barν_τ$衰变中包括轻子分布的修正 显示英文标题

标题： Perturbative QCD corrections to inclusive lepton distributions from semileptonic $b \to cτ\barν_τ$ decays

摘要： 微扰修正的阶数为$\alpha_s$的包含双微分轻子分布来自$b$夸克衰变被考虑。 对任意带电轻子质量的带电轻子能量谱的微扰修正已经被计算。 微扰贡献抑制了部分衰变率，但几乎不改变能量分布的形状。 我们的结果在半轻子 B 介子衰变中的应用被简要讨论。 显示英文摘要

摘要： Perturbative corrections of the order of $\alpha_s$ to inclusive double differential lepton distribution from $b$ quark decay are considered. A perturbative correction to the charged lepton energy spectrum has been calculated for an arbitrary charged lepton mass. The perturbative contribution suppresses the partial rate but almost does not change the shape of energy distribution. Applications of our result to semileptonic B meson decays are briefly discussed.