Four-Fermion Production in Electron-Positron Collisions

Accomando, E.; Ballestrero, A.; Bambade, P.; Bardin, D.; Beenakker, W.; Berends, F.; Boos, E.; Chapovsky, A.; Denner, A.; Dittmaier, S.; Dubinin, M.; Gruenewald, Martin W.; Hansen, J. B.; Ilyin, V.; Jadach, S.; Kurihara, Y.; Kuroda, M.; Maina, E.; Montagna, G.; Moretti, M.; Nicrosini, O.; Olshevsky, A.; Osmo, M.; Pallavicini, A.; Papadopoulos, C. G.; Passarino, Giampiero; Phillips, H. T.; Piccinini, F.; Pittau, R.; Placzek, W.; Riemann, T.; Roth, M.; Schmidt-Kaerst, A. S.; Shimizu, Y.; Skrzypek, M.; Tanaka, R.; Verzocchi, M.; Wackeroth, D.; Ward, B. F. L.; Was, Z.

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Four-Fermion Production in Electron-Positron Collisions

Abstract

This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in electron-positron collisions at LEP-2 centre-of-mass energies are presented, concentrating on predictions for four main reactions: W-pair production, visible photons in four-fermion events, single-W production and Z-pair production. Based on a comparison of results derived within different approaches, theoretical uncertainties on these predictions are established.Comment: 150 pages, 73 figures, 45 table

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