2021 Impact factor 4.991
Particles and Fields
Eur. Phys. J. C 17, 97-105
DOI 10.1007/s100520000462

Summing up subleading Sudakov logarithms

J.H. Kühn1 - A.A. Penin2 - V.A. Smirnov3

1 Institut für Theoretische Teilchenphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany
2 II. Institut für Theoretische Physik, Universität Hamburg, 22761 Hamburg, Germany
3 Nuclear Physics Institute of Moscow State University, 119899 Moscow, Russia

Received: 6 June 2000 / Published online: 9 August 2000 - © Springer-Verlag 2000

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.

Copyright Società Italiana di Fisica, Springer-Verlag 2000