Measurements of CP-conserving trilinear gauge boson couplings WWV (V≡γ,Z) in e+e− collisions at LEP2

• Published in: The European physical journal. C, Particles and fields Vol. 66; no. 1-2; pp. 35 - 56
• Main Authors: Albrecht, T., Amaldi, U., Arnoud, Y., Augustinus, A., Barbier, R., Barker, G. J., Benvenuti, A., Besson, N., Blom, M., Bonesini, M., Borisov, G., Bouquet, B., Bracko, M., Brunet, J. M., Camporesi, T., Chapkin, M., Charpentier, Ph, Chudoba, J., Cieslik, K., De Clercq, C., De Maria, N., de Paula, L., Di Ciaccio, L., Di Simone, A., Elsing, M., Fernandez, J., Foeth, H., Garcia, C., Golob, B., Gomez-Ceballos, G., Graziani, E., Guy, J., Haag, C., Hallgren, A., Holmgren, S-O., Holt, P. J., Jeans, D., Joram, C., Katsoufis, E., Kernel, G., Kerzel, U., King, B. T., Kouznetsov, O., Lamsa, J., Ledroit, F., Leinonen, L., Leitner, R., Lemonne, J., Liebig, W., Liko, D., Lipniacka, A., Lyons, L., Maltezos, S., Marco, J., Mariotti, C., Matteuzzi, C., Mazzucato, F., Mazzucato, M., Migliore, E., Moa, T., Moch, M., Montenegro, J., Mundim, L., Murray, W., Nassiakou, M., Nawrocki, K., Nicolaidou, R., Oblakowska-Mucha, A., Orava, R., Parkes, C., Peralta, L., Perrotta, A., Piedra, J., Piotto, E., Podobnik, T., Pol, M. E., Polok, G., Pozdniakov, V., Romero, A., Roudeau, P., Ruhlmann-Kleider, V., Sadovsky, A., Sander, C., Schwickerath, U., Sopczak, A., Stanitzki, M., Timmermans, J., Tkatchev, L., Tobin, M., Treille, D., Trochimczuk, M., Uvarov, V., Valenti, G., Van Eldik, J., Verzi, V., Vitale, L., Wilkinson, G., Winter, M., Zalewski, P., Zhuravlov, V.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 2010; Springer; Springer Nature B.V; Springer Verlag (Germany)
• Subjects: Arrays; Astronomy; Astrophysics and Cosmology; Couplings; Elementarpartikelfysik; Elementary particle physics; Elementary Particles; Exact sciences and technology; Fysik; Hadrons; Heavy Ions; High Energy Physics - Experiment; Leptons; Mathematical models; Measurement Science and Instrumentation; NATURAL SCIENCES; NATURVETENSKAP; Nuclear Energy; Nuclear Physics; Parameters; Physical Sciences; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Experimental Physics; String Theory; Subatomic Physics; Subatomär fysik; The physics of elementary particles and fields; Standard Model Prediction; DELPHI Collaboration; Systematic Uncertainty; Lepton Candidate; Colour Reconnection; Coupling constants; Leptons; Center of mass; Elementary particles; Standard model; Jets; Positron annihilation; Mathematical physics; Bosons
• ISSN: 1434-6044; 1434-6052; 1434-6052
• DOI: 10.1140/epjc/s10052-010-1254-1

The data taken by
Delphi
at centre-of-mass energies between 189 and 209 GeV are used to place limits on the
CP
-conserving trilinear gauge boson couplings
,
λ
γ
and Δ
κ
γ
associated to
W
+
W
−
and single
W
production at
Lep2
. Using data from the
jj
ℓ
ν
,
jjjj
,
jjX
and
ℓ
X
final states, where
j
,
ℓ
and
X
represent a jet, a lepton and missing four-momentum, respectively, the following limits are set on the couplings when one parameter is allowed to vary and the others are set to their Standard Model values of zero:
Results are also presented when two or three parameters are allowed to vary. All observations are consistent with the predictions of the Standard Model and supersede the previous results on these gauge coupling parameters published by
Delphi
.