论文标题
向量，张量和标量复合顶点的相关器$ O（α_s^2β_0）$
Correlators of vector, tensor, and scalar composite vertices of order $O(α_s^2β_0)$
论文作者
论文摘要
我们介绍了两个向量，张量和标量复合顶点的无质量相关因子的分析结果。这些相关器的结构详细讨论了这些相关器$π^\ text {v，t，s}（x，y; p^2）$和其主要元素的属性。特别注意验证结果并将其与已知的特定情况进行比较。我们将相关器应用于QCD和规则中光中膜的分布幅度评估辐射校正。
We present analytical results for massless correlators of two vector, tensor, and scalar composite vertices with the Bjorken fractions $x$ and $y$ of order $α_s^2 β_0$ of QCD. The structure of these correlators $Π^\text{V,T,S}(x,y; p^2)$ and properties of its main elements are discussed in detail. Special attention is paid to verifying the results and comparing them with known particular cases. We apply the correlators to evaluate radiative corrections to the distribution amplitudes of light mesons within the QCD sum rules.
