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.2013.07.004Abstract
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-1 collected 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, mW and ΓW, the branching fraction of W decays to hadrons, B (W → had), and the trilinear gauge-boson self-couplings g1Z, κγ and λγ are determined to be: mW=80.376±0.033GeV ΓW=2.195±0.083GeV B(W→had)=67.41±0.27% g1Z=0.9840+0.018-0.020 κγ=0.982±0.042λγ=-0.022±0.019. © 2013 Elsevier B.V.
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