论文标题
在$ e^+e^ - \toπ^+π^ - $中对前向反向不对称的辐射校正
Radiative corrections to the forward-backward asymmetry in $e^+e^-\toπ^+π^-$
论文作者
论文摘要
我们将$ c $ -odd辐射校正的计算为$ e^+e^ - \ toπ^+π^ - $ to gossive形式主义中的$，集中在虚拟盒图中的领先锥形孔贡献上。特别是，我们展示了如何以模型独立的方式纳入一般的旋转矢量形态在循环积分中的效果，以及在这种情况下，红外奇异性的取消如何进行。数值结果以红外增强的贡献为主，表明超出标量QED之外的重大校正，从本质上证实了广义矢量 - 梅森优势模型中的最新发现。
We present a calculation of the $C$-odd radiative corrections to $e^+e^-\to π^+π^-$ in a dispersive formalism, concentrating on the leading pion-pole contribution in the virtual box diagrams. In particular, we show how the effect of a general pion vector form factor in the loop integral can be incorporated in a model-independent way and how the cancellation of infrared singularities proceeds in this case. The numerical results, dominated by the infrared enhanced contributions, indicate significant corrections beyond scalar QED, essentially confirming recent findings in generalized vector-meson-dominance models.
