Measurement of trilinear gauge couplings in e +e − collisions at 161 GeV and 172 GeV

• Published in: Physics letters. B Vol. 423; no. 1; pp. 194 - 206
• Main Authors: Amato, S, Andreazza, A, Antilogus, P, Augustinus, A, Barbier, R, Battaglia, M, Bigi, M, Bizouard, M-A, Boonekamp, M, Booth, P.S.L, Bouquet, B, Brenke, T, Brenner, R.A, Camporesi, T, Carena, F, Cattai, A, Cavallo, F.R, Chorowicz, V, Colomer, M, Crawley, H.B, Crosetti, G, Davenport, M, Demaria, N, De Angelis, A, De Min, A, Ehret, R, Ekspong, G, Engel, J-P, Erzen, B, Fanourakis, G, Fassouliotis, D, Fayot, J, Fichet, S, Fischer, P.-A, Frodesen, A.G, Fruhwirth, R, Gerber, J-P, Golob, B, Gonzalez Caballero, I, Gouz, Yu, Gris, P, Grzelak, K, Gunther, M, Henriques, R, Hernandez, J.J, Hessing, T.L, Heuser, J.-M, Holmgren, S-O, Hoorelbeke, S, Hultqvist, K, Jarry, P, Jean-Marie, B, Johansson, E.K, Jonsson, P, Joram, C, Katsoufis, E.C, Khovanski, N.N, Lacasta, C, Lapin, V, Leder, G, Marechal, B, Margoni, M, Markou, A, Matthiae, G, Mazzucato, F, Meyer, W.T, Mitaroff, W.A, Murray, W.J, Niss, P, Onofre, A, Osterberg, K, Paiano, S, Paiva, R, Palka, H, Papageorgiou, K, Pernegger, H, Piotto, E, Polok, G, Privitera, P, Ragazzi, S, Read, A.L, Renton, P.B, Rovelli, T, Sisakian, A.N, Solovianov, O, Sopczak, A, Stampfer, D, Stugu, B, Szczekowski, M, Tkatchev, L.G, Transtromer, G, Ullaland, O, Valenti, G, Vassilopoulos, N, Ventura, L, Vilanova, D, Waldner, F, Wetherell, A.M, Witek, M, Yi, J
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 1998; Elsevier
• Subjects: High Energy Physics - Experiment; Physics; OPTIMAL OBSERVABLES; PHOTON COUPLINGS; ROOT-S=1.8 TEV
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/S0370-2693(98)00080-X

Trilinear gauge boson couplings are measured using data taken by DELPHI at 161 GeV and 172 GeV. Values for WWV couplings ( V= Z, γ) are determined from a study of the reactions e + e −→ W + W − and e + e −→ Weν, using differential distributions from the WW final state in which one W decays hadronically and the other leptonically, and total cross-section data from other channels. Limits are also derived on neutral ZVγ couplings from an analysis of the reaction e +e −→ γ + invisible particles .