论文标题
辐射校正的Parton分布到电子蛋白散射的横截面
Parton distributions in radiative corrections to the cross section of electron-proton scattering
论文作者
论文摘要
结构函数方法和Parton图片是为深度无弹性电子散射的理论描述而开发的，也证明对于计算量子电动力学中辐射校正的计算非常有效。我们使用它们来计算由于电子 - 光子相互作用引起的电子 - 蛋白散射横截面的辐射校正，并在实验设置的带有后坐力质子检测的实验设置中，由A.A.提出。 Vorobev测量质子半径。在单循环近似中，对于任意动量转移，获得了这些校正的显式表达式。结果表明，与质子质量相比，在动量下，对校正的各种贡献都以功率准确性相互取消。在两个循环中，在领先的对数近似中获得了校正。
The structure function approach and the parton picture, developed for the theoretical description of the deep inelastic electron-proton scattering, also proved to be very effective for calculation of radiative corrections in Quantum Electrodynamics. We use them to calculate radiative corrections to the cross section of electron-proton scattering due to electron-photon interaction, in the experimental setup with the recoil proton detection, proposed by A.A. Vorobev to measure the proton radius. In the one-loop approximation, explicit expressions for these corrections are obtained for arbitrary momentum transfers. It is shown that, at momentum transfers small compared with the proton mass, various contributions to the corrections mutually cancel each other with power accuracy. In two loops, the corrections are obtained in the leading logarithmic approximation.
