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arXiv 1901.04441hep-ph
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双回路$C$的主积分-对$e^+e^-\to \ell^+\ell^-$过程的奇贡献

Master integrals for two-loop $C$-odd contribution to $e^+e^-\to \ell^+\ell^-$ process

Roman N. Lee, Kirill T. Mingulov

摘要:

计算了$e^+e^-$碰撞中重轻子对产生过程的双圈主积分。我们考虑了中间态三光子的$C$奇图,并在零电子质量极限下计算了相应的主积分族。主积分的结果直接适用于湮没通道对应的整个物理区域。

英文摘要:

We calculate two-loop master integrals for the process of heavy lepton pair production in $e^+e^-$ collisions. We consider the $C$-odd diagrams with three photons in the intermediate state and evaluate the corresponding families of the master integrals in the limit of zero electron mass. Our results for the master integrals are directly applicable in the whole physical region corresponding to the annihilation channel.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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