2020 Impact factor 4.590
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

Abstract
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