Title: Perturbative QCD Analysis of Exclusive Processes $e^+e^-\rightarrow VP$ and $e^+e^-\rightarrow TP$ Show Chinese title

Title: 微扰QCD对独占过程的分析$e^+e^-\rightarrow VP$和$e^+e^-\rightarrow TP$

Abstract: We study the $e^+e^-\to VP$ and $e^+e^-\to TP$ processes in the perturbative QCD approach based on $k_T$ factorization, where the $P,V$ and $T$ denotes a light pseudo-scalar, vector and tensor meson, respectively. We point out in the case of $e^+e^-\to TP$ transition due to charge conjugation invariance, only three channels are allowed: $e^+e^-\to a_2^{\pm} \pi^\mp$, $e^+e^-\to K_2^{*\pm} K^\mp$ and the V-spin suppressed $e^+e^-\to K_2^{*0} \bar K^0+\overline K_2^{*0} K^0 $. Cross sections of $e^+e^-\to VP$ and $e^+e^-\to TP$ at $\sqrt{s}=3.67$ GeV and $\sqrt{s}=10.58$ GeV are calculated and the invariant mass dependence is found to favor the $1/s^4$ power law. Most of our theoretical results are consistent with the available experimental data and other predictions can be tested at the ongoing BESIII and forthcoming Belle-II experiments. Show Chinese abstract

Abstract: 我们研究在微扰QCD方法中的 $e^+e^-\to VP$ 和 $e^+e^-\to TP$ 过程，基于 $k_T$ 分解，其中 $P,V$ 和 $T$ 分别表示轻赝标、矢量和张量介子。 我们指出在$e^+e^-\to TP$转变的情况下，由于电荷共轭不变性，只允许三个通道：$e^+e^-\to a_2^{\pm} \pi^\mp$，$e^+e^-\to K_2^{*\pm} K^\mp$和 V-自旋抑制的$e^+e^-\to K_2^{*0} \bar K^0+\overline K_2^{*0} K^0 $。 $e^+e^-\to VP$和$e^+e^-\to TP$在$\sqrt{s}=3.67$GeV 和$\sqrt{s}=10.58$GeV 处的截面被计算，发现不变质量依赖性有利于$1/s^4$幂律。 我们的大部分理论结果与现有的实验数据一致，其他预测可以在正在进行的 BESIII 和即将开始的 Belle-II 实验中进行检验。