Journal article
Measurement of triple gauge boson couplings from W W- production at √s = 172GeV
K Ackerstaff, G Alexander, J Allison, N Altekamp, KJ Anderson, S Anderson, S Arcelli, S Asai, D Axen, G Azuelos, AH Ball, E Barberio, RJ Barlow, R Bartoldus, JR Batley, S Baumann, J Bechtluft, C Beeston, T Behnke, AN Bell Show all
European Physical Journal C | Published : 1998
Abstract
We present measurements of triple gauge boson coupling parameters using data recorded by the OPAL detector at LEP2 at a centre-of-mass energy of 172 GeV. A total of 120 W-pair candidates has been selected in the qq̄qq̄, qq̄ℓv̄ℓ and ℓv̄ℓℓ̄′vℓ′ decay channels, for an integrated luminosity of 10.4 pb-1. We use these data to determine several different anomalous coupling parameters using the measured cross-section and the distributions of kinematic variables. We measure αΒφ=0.35 +1.29-1.07 ± 0.38, αWφ=0.00+0.30-0.28 ± 0.11, αW = 0.18+0.49-0.47 ± 0.23, Δgz1=-0.03+0.40-0.37 ± 0.14, Δκ(H1SZ)γ = 0.03+0.55-0.51 ± 0.20, and Δκ=0.03+0.49-0.46 ± 0.21. Combining the αWφ result with our previous result ob..
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