%0 Journal Article
%T Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP
%A ALEPH, D. E. L. P. H. I.
%A Costa, M. J.
%A Ferrer, A.
%A Fuster, J.
%A Garcia, C.
%A Oyanguren, A.
%A Perepelitsa, V.
%A Salt, J.
%A Tortosa, P.
%J Physics Reports
%D 2013
%V 532
%N 4
%I Elsevier Science Bv
%@ 0370-1573
%G English
%F ALEPH_etal2013
%O WOS:000328723800001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1679), last updated on Fri, 21 Mar 2014 12:46:31 +0000
%X Electroweak measurements performed with data taken at the electron positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3 fb(-1) collected by the four LEP experiments ALEPH, DELPHI, 13 and OPAL, at centre-of-mass energies ranging from 130 GeV to 209 GeV. Combining the published results of the four LEP experiments, the measurements include total and differential cross-sections in photon-pair, fermion-pair and four-fermion production, the latter resulting from both double-resonant WW and ZZ production as well as singly resonant production. Total and differential cross-sections are measured precisely, providing a stringent test of the Standard Model at centre-of-mass energies never explored before in electron positron collisions. Final-state interaction effects in four-fermion production, such as those arising from colour reconnection and Bose Einstein correlations between the two W decay systems arising in WW production, are searched for and upper limits on the strength of possible effects are obtained. The data are used to determine fundamental properties of the W boson and the electroweak theory. Among others, the mass and width of the W boson, m(w) and Gamma(w), the branching fraction of W decays to hadrons, B(W -> had), and the trilinear gauge-boson self-couplings g(1)(Z), K-gamma and lambda(gamma), are determined to be: m(w) = 80.376 +/- 0.033 GeV Gamma(w) = 2.195 +/- 0.083 GeV B(W -> had) = 67.41 +/- 0.27% g(1)(Z) = 0.984(-0.020)(+0.018) K-gamma – 0.982 +/- 0.042 lambda(gamma) = 0.022 +/- 0.019.
%K Electron-positron physics
%K Electroweak interactions
%K Decays of heavy intermediate gauge bosons
%K Fermion-antifermion production
%K Precision measurements at W-pair energies
%K Tests of the Standard Model
%K Radiative corrections
%K Effective coupling constants
%K Neutral weak current
%K Z boson
%K W boson
%K Top quark
%K Higgs boson
%R 10.1016/j.physrep.2013.07.004
%U http://arxiv.org/abs/1302.3415
%U https://doi.org/10.1016/j.physrep.2013.07.004
%P 119-244