Summing up subleading Sudakov logarithms
Copyright policy )Summing up subleading Sudakov logarithms
We apply the strategy of regions within dimensional regularization to find functions involved in evolution equations which govern the asymptotic dynamics of the Abelian form factor and four-fermion amplitude in the SU(N) gauge theory in the Sudakov limit up to the next-to-leading logarithmic approximation. The results are used for the analysis of the dominant electroweak corrections to the fermion-antifermion pair production in the $e^+e^-$ annihilation at high energy.
17 pages LaTeX, missprins corrected, references added
- Deutsches Elektronen-Synchrotron DESY Germany
- National University of Science and Technology Russian Federation
- Helmholtz Association of German Research Centres Germany
- Lomonosov Moscow State University Russian Federation
- Universität Hamburg Germany
scattering amplitude: (4fermion), angular distribution: asymmetry, Physics, leading logarithm approximation: higher-order, ddc:530, FOS: Physical sciences, electron positron: annihilation, fermion: pair production, gauge field theory: SU(N), 530, electroweak interaction: correction, quark: pair production, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), regularization: dimensional, channel cross section: energy dependence, info:eu-repo/classification/ddc/530, numerical calculations, form factor: abelian
scattering amplitude: (4fermion), angular distribution: asymmetry, Physics, leading logarithm approximation: higher-order, ddc:530, FOS: Physical sciences, electron positron: annihilation, fermion: pair production, gauge field theory: SU(N), 530, electroweak interaction: correction, quark: pair production, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), regularization: dimensional, channel cross section: energy dependence, info:eu-repo/classification/ddc/530, numerical calculations, form factor: abelian
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