标题： Sudakov近似之外的量子电动力学高能极限 显示英文标题

标题： High-Energy Limit of Quantum Electrodynamics beyond Sudakov Approximation

摘要： 我们研究了量子电动力学中散射振幅的高能行为，超越了小电子质量展开的领头阶，在领头对数近似下进行了分析。 与Sudakov对数不同，这种由软电子对交换引起的、被电子质量抑制的双对数辐射修正，导致了幂次上被抑制的贡献增强。 此外，还讨论了我们的结果在量子色动力学高能过程分析中的潜在应用。 显示英文摘要

摘要： We study the high-energy behavior of the scattering amplitudes in quantum electrodynamics beyond the leading order of the small electron mass expansion in the leading logarithmic approximation. In contrast to the Sudakov logarithms, the mass-suppressed double-logarithmic radiative corrections are induced by a soft electron pair exchange and result in enhancement of the power-suppressed contribution. Possible applications of our result to the analysis of the high-energy processes in quantum chromodynamics is also discussed.