论文标题
在$ e^+e^ - \toπ^+π^ - $ process中充电不对称
Charge asymmetry in $e^+e^-\to π^+π^-$ process
论文作者
论文摘要
我们考虑过程中的电荷不对称性$ e^+e^ - \rightarrowπ^+π^ - $。实验数据表明，与可用理论计算结果的偏差很大。在这一事实中，我们重新审视了两个光子交换图的贡献，并在理论计算中对斜向内部结构的过度简化说明中找到了差异的起源。我们提出了一种自然而简单的方法，该方法以更加一致的方式解释了静脉结构，并与实验数据发现了显着的一致性。
We consider the charge asymmetry in the differential cross section of the process $e^+e^- \rightarrow π^+π^-$. Experimental data show large deviations from the results of the available theoretical calculations. Motivated by this fact, we revisit the contribution of the two photon exchange diagrams and find the origin of discrepancy in an oversimplified account of the pion internal structure in the theoretical calculations. We present a natural and simple approach that accounts for the pion structure in a more consistent way and find remarkable agreement with the experimental data.
