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首页> 外文期刊>Journal of Experimental and Theoretical Physics >(Quasi)elastic Large-Angle Electron-Muon Scattering in the Two-Loop Approximation: Contributions of the Eikonal Type
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(Quasi)elastic Large-Angle Electron-Muon Scattering in the Two-Loop Approximation: Contributions of the Eikonal Type

机译:双环近似中的(拟)弹性大角度电子-Mu子散射:Eikonal型贡献

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摘要

A part of the eikonal-type contributions to the eμ large-angle high-energy scattering cross section is considered in a quasielastic experimental setup. In addition to virtual corrections, we examine inelastic processes with emission of one and two soft real photons and soft lepton and pion paris. Virtual photon contributions are given within a logarithmic accuracy. Box-type Feynman amplitudes with leptonic and a hadronic vacuum polarization insertion and double-box ones are considered explicitly. Wherever appropriate, the analytic expressions obtained are compared with those predicted by the structure function approach.
机译:在准弹性实验装置中考虑了对eμ大角高能散射截面的eikonal型贡献的一部分。除了虚拟校正之外,我们还检查了非弹性过程,其中发射了一个和两个软的真实光子以及软的轻子和pion巴黎。虚拟光子贡献在对数精度内给出。明确考虑了具有轻子和强子真空极化插入的盒型费曼振幅和双盒型。在适当情况下,将获得的分析表达式与通过结构函数方法预测的表达式进行比较。

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