论文标题
$ e^+e^ - $ nihihation in pions或kaons重新审视的前向后不对称
Forward-backward asymmetry in $e^+e^-$ annihilation into pions or kaons revisited
论文作者
论文摘要
在单循环近似中重新计算出$ e^+e^ - $ nihilation在一对带电的伪内膜中的过程中的前进（电荷）不对称。考虑到介子质量的确切依赖性。文献中已知的结果已部分纠正。由于$ S $频道中的双光量交换，大部分电荷不对称出现。不对称性的实验研究可用于验证由于乳腺或kaons发射光子而导致的辐射校正计算的点状近似。
Forward-backward (charge) asymmetry in the processes of $e^+e^-$ annihilation into a pair of charged pseudoscalar mesons is recalculated in the one-loop approximation. The exact dependence on the meson masses is taken into account. Results known in the literature are partially corrected. The bulk of the charge asymmetry appears due to double-photon exchange in $s$ channel. Experimental studies of the asymmetry can be used to verify the point-like approximation used in calculation of radiative corrections due to emission of photons by pions or kaons.
