Measurement of triple gauge-boson couplings at LEP energies up to 189 GeV

Authors
Heister, A Schael, S Barate, R De Bonis, I Decamp, D Ghez, P Goy, C Jezequel, S Lees, JP Martin, F Merle, E Minard, MN Pietrzyk, B Trocme, B Bravo, S Casado, MP Chmeissani, M Crespo, JM Fernandez, E Fernandez-Bosman, M Garrido, L Grauges, E Lopez, J Martinez, M Merino, G Miquel, R Mir, LM Pacheco, A Paneque, D Ruiz, H 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 Azzurri, P Barklow, T Boix, G Buchmuller, O Cattaneo, M Cerutti, F Clerbaux, B Dissertori, G Drevermann, H Forty, RW Frank, M Gianotti, F Greening, TC Hansen, JB Harvey, J Hutchcroft, DE Janot, P Jost, B Kado, M Lemaitre, V Maley, P Mato, P Moutoussi, A Ranjard, F Rolandi, L Schlatter, D Spagnolo, P Tejessy, W Teubert, F Tournefier, E Valassi, A Ward, JJ Wright, AE Ajaltouni, Z Badaud, F Dessagne, S Falvard, A Fayolle, D Gay, P Henrard, P Jousset, J Michel, B Monteil, S Montret, JC Pallin, D Pascolo, JM Perret, P Podlyski, F Hansen, JD Hansen, JR Hansen, PH Nilsson, BS Waananen, A Daskalakis, G Kyriakis, A Markou, C Simopoulou, E Vayaki, A Blondel, A Brient, JC Machefert, F Rouge, A Swynghedauw, M Tanaka, R Videau, H Focardi, E Parrini, G Zachariadou, K Antonelli, A Antonelli, M Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Laurelli, P Mannocchi, G Murtas, F Murtas, GP Passalacqua, L Pepe-Altarelli, M Chalmers, M Halley, AW Kennedy, J Lynch, JG Negus, P O'Shea, V Raeven, B Smith, D Thompson, AS Wasserbaeck, S Cavanaugh, R Dhamotharan, S Geweniger, C Hanke, P Hepp, V Kluge, EE Leibenguth, G Putzer, A Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, DM Cameron, W Davies, G Dornan, PJ Girone, M Marinelli, N Nowell, J Przysiezniak, H Rutherford, S Sedgbeer, JK Thompson, JC White, R Ghete, VM Girtler, P Kneringer, E Kuhn, D Rudolph, G Bouhova-Thacker, E Bowdery, CK Clarke, DP Ellis, G Finch, AJ Foster, F Hughes, G Jones, RWL Pearson, MR Robertson, NA Smizanska, M Giehl, I Holldorfer, F Jakobs, K Kleinknecht, K Krocker, M Muller, AS Nurnberger, HA Quast, G Renk, B Rohne, E Sander, HG Schmeling, S Wachsmuth, H Zeitnitz, C Ziegler, T Bonissent, A Carr, J Coyle, P Curtil, C Ealet, A Fouchez, D Leroy, O Kachelhoffer, T Payre, P Rousseau, D Tilquin, A Aleppo, M Gilardoni, S Ragusa, F David, A Dietl, H Ganis, G Huttmann, K Lutjens, G Mannert, C Manner, W Moser, HG Settles, R Stenzel, H Wolf, G Boucrot, J Callot, O Davier, M Duflot, L Grivaz, JF Heusse, P Jacholkowska, A Serin, L Veillet, JJ Videau, I de Regie, JBD Yuan, C Bagliesi, G Boccali, T Calderini, G Ciulli, V Foa, L Giammanco, A Giassi, A Ligabue, F Messineo, A Palla, F Sanguinetti, G Sciaba, A Sguazzoni, G Tenchini, R Venturi, A Verdini, PG Awunor, O Blair, GA Coles, J Cowan, G Garcia-Bellido, A Green, MG Jones, LT Medcalf, T Misiejuk, A Strong, JA Teixeira-Dias, P Clifft, RW Edgecock, TR Norton, PR Tomalin, IR Bloch-Devaux, B Boumediene, D Colas, P Fabbro, B Lancon, E Lemaire, MC Locci, E Perez, P Rander, J Renardy, JF Rosowsky, A Seager, P Trabelsi, A Tuchming, B Vallage, B Konstantinidis, N Litke, AM Loomis, C Taylor, G Booth, CN Cartwright, S Combley, F Hodgson, PN Lehto, M Thompson, LF Affholderbach, K Bohrer, A Brandt, S Grupen, C Hess, J Ngac, A Prange, G Sieler, U Borean, C Giannini, G He, H Putz, J Rothberg, J Armstrong, SR Cranmer, K Elmer, P Ferguson, DPS Gao, Y Gonzalez, S Hayes, OJ Hu, H Jin, S Kile, J McNamara, PA Nielsen, J Orejudos, W Pan, YB Saadi, Y Scott, LJ von Wimmersperg-Toeller, JH Walsh, J Wiedenmann, W Wu, J Wu, SL Wu, X Zobernig, G
Citation
A. Heister et al., Measurement of triple gauge-boson couplings at LEP energies up to 189 GeV, EUR PHY J C, 21(3), 2001, pp. 423-441
Citations number
65
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
21
Issue
3
Year of publication
2001
Pages
423 - 441
Database
ISI
SICI code
1434-6044(200107)21:3<423:MOTGCA>2.0.ZU;2-0
Abstract
The triple gauge-boson couplings involving the W are determined using data samples collected with the ALEPH detector at mean centre-of-mass energies o f 183 GeV and 189 GeV, corresponding to integrated luminosities of 57 pb(-1 ) and 174 pb(-1), respectively. The couplings, g(1)(Z), kappa (gamma) and l ambda (gamma) are measured using W-pair events, single-W production and sin gle-gamma production. Each coupling is measured individually with the other two couplings fixed at their standard model value. Including ALEPH results from lower energies, the 95% confidence level intervals for the deviation to the standard model are -0.087 < Deltag(1)(Z) < 0.141, -0.200 < Delta kappa (gamma) < 0.258, and - 0.062 < lambda (gamma) < 0.147. Fits are also presented where two or all three couplings are allowed to var y. In addition, W-pair events are used to set limits on the C- or P-violati ng couplings g(4)(V), g(5)(V), <(<kappa>)over tilde>(V) and <(<lambda>)over tilde>(V), where Vdenotes either gamma or Z. No deviations from the standa rd model expectations are observed.