2002/11/26 by B. I. Ermolaev, M. Greco, Ermolaev, B. I. +6
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0211415
8 pages, 4 figures. Talk given at 12th International Seminar on High-Energy Physics (QUARKS 2002), Novgorod, Russia, 1-7 Jun 2002 by B.I. Ermolaev
arxiv created 2002/11/26 · openalex publication_date 2002/11/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Accounting for double-logarithmic contributions to high-energy (>> 100 GeV) e+ e- annihilation into a quark or a lepton pair in the kinematics where the final particles are colinear to the e+e- beams leading to a sizable difference between the forward and backward scattering amplitudes, i.e. to the forward-backward asymmetry. When the annihilation is accompanied by emission of n electroweak bosons in the multi-Regge kinematics, it turns out that the cross sections of the photon and Z production have the identical energy dependence and asymptotically their ratio depends only on the Weinberg angle (is equal to tan2n thetaW) whereas the energy dependence of the cross section of the W production is suppressed by factor s-0.4 compared to them.