论文标题
$ o（α_s）$扰动和非扰动校正对两极分化的半抑制$λ_b$衰减分布
$O(α_s)$ perturbative and nonperturbative corrections to polarized semileptonic $Λ_b$ decay distributions
论文作者
论文摘要
在本文中，我们将一阶辐射QCD校正计算为衰减过程$ b \ to cw^ - （\ to \ ell^ - \barν_\ ell）$的$ bart Quark。考虑到底部和魅力夸克质量，本文给出的分析表达式允许对偏光夸克的差异衰减速率进行详细分析，以依赖Lepton对的极性和方位角，以及相对于$ W $ boson的动量方向的夸克偏光矢量的角度。结果是针对带电的Lepton的不同极化状态给出的。此外，我们计算了非扰动校正，并估计了它们的贡献。
In this paper we calculate first order radiative QCD corrections to the decay process $b\to cW^-(\to\ell^-\barν_\ell)$ of a polarized bottom quark. Taking into account both the bottom and charm quark masses, the analytical expressions given in this paper allow for a detailed analysis of the differential decay rate of the polarized quark in dependence on the polar and azimuthal angles of the lepton pair and the angle of the polarization vector of the quark relative to the momentum direction of the $W$ boson. The results are given for different polarization states of the charged lepton. In addition, we calculated nonperturbative corrections and estimated their contribution.
