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تسجيل مستخدم جديد(Quasi)elastic electron--muon large-angle scattering to a two-loop approximation: vertex contributions
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We consider a process of quasielastic $emu$ large-angle scattering at high energies with radiative corrections up to a two-loop level. A lowest order radiative correction arising both from one-loop virtual photon emission and a real soft emission are presented to a power accuracy. Two-loop level corrections are supposed to be of three gauge-invariant classes. One of them, so called vertex contribution, is given in logarithmic approximation. Relation with the renormalization group approach is discussed.
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