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Electroweak measurements in electron-positron collisions at W-boson-pair energies at LEP

  • Author(s): Schael, S
  • Barate, R
  • Brunelière, R
  • Buskulic, D
  • De Bonis, I
  • Decamp, D
  • Ghez, P
  • Goy, C
  • Jézéquel, S
  • Lees, JP
  • Lucotte, A
  • Martin, F
  • Merle, E
  • Minard, MN
  • Nief, JY
  • Odier, P
  • Pietrzyk, B
  • Trocmé, B
  • Bravo, S
  • Casado, MP
  • Chmeissani, M
  • Comas, P
  • Crespo, JM
  • Fernandez, E
  • Fernandez-Bosman, M
  • Garrido, L
  • Grauges, E
  • Juste, A
  • Martinez, M
  • Merino, G
  • Miquel, R
  • Mir, LM
  • Orteu, S
  • Pacheco, A
  • Park, IC
  • Perlas, J
  • Riu, I
  • Ruiz, H
  • Sanchez, F
  • Colaleo, A
  • Creanza, D
  • De Filippis, N
  • de Palma, M
  • Iaselli, G
  • Maggi, G
  • Maggi, M
  • Nuzzo, S
  • Ranieri, A
  • Raso, G
  • Ruggieri, F
  • Selvaggi, G
  • Silvestris, L
  • Tempesta, P
  • Tricomi, A
  • Zito, G
  • Huang, X
  • Lin, J
  • Ouyang, Q
  • Wang, T
  • Xie, Y
  • Xu, R
  • Xue, S
  • Zhang, J
  • Zhang, L
  • Zhao, W
  • Abbaneo, D
  • Bazarko, A
  • Becker, U
  • Boix, G
  • Bird, F
  • Blucher, E
  • Bonvicini, B
  • Bright-Thomas, P
  • Barklow, T
  • Buchmüller, O
  • Cattaneo, M
  • Cerutti, F
  • Ciulli, V
  • Clerbaux, B
  • Drevermann, H
  • Forty, RW
  • Frank, M
  • Greening, TC
  • Hagelberg, R
  • Halley, AW
  • Gianotti, F
  • Girone, M
  • Hansen, JB
  • Harvey, J
  • Jacobsen, R
  • Hutchcroft, DE
  • Janot, P
  • Jost, B
  • Knobloch, J
  • Kado, M
  • Lehraus, I
  • Lazeyras, P
  • Maley, P
  • Mato, P
  • May, J
  • et al.

Published Web Location

https://doi.org/10.1016/j.physrep.2013.07.004
No data is associated with this publication.
Abstract

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 3fb-1collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from 130GeV to 209GeV. 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 W W and Z Z 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 W W 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, mWand ΓW, the branching fraction of W decays to hadrons, B (W → had), and the trilinear gauge-boson self-couplings g1Z,κγandλγare determined to be: mW=80.376±0.033GeV ΓW=2.195±0.083GeV B(W→had)=67.41±0.27% g1Z=0.9840+0.018-0.020κγ=0.982±0.042λγ=-0.022±0.019. © 2013 Elsevier B.V.

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