Measurement of triple gauge WW gamma couplings at LEP2 using photonic events

Authors
Barate, R Buskulic, D Decamp, D Ghez, P Goy, C Jezequel, S Lees, JP Lucotte, A Martin, F Merle, E Minard, MN Nief, JY Perrodo, P Pietrzyk, B Alemany, R Casado, MP Chmeissani, M Crespo, JM Delfino, M Fernandez, E Fernandez-Bosman, M Garrido, L Grauges, E Juste, A Martinez, M Merino, G Miquel, R Mir, LM Morawitz, P Pacheco, A Park, IC Pascual, A Riu, I Sanchez, F Colaleo, A Creanza, D de Palma, M Gelao, G 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 Becker, U Boix, G Cattaneo, M Cerutti, F Ciulli, V Dissertori, G Drevermann, H Forty, RW Frank, M Gianotti, F Halley, AW Hansen, JB Harvey, J Janot, P Jost, B Lehraus, I Leroy, O Loomis, C Maley, P Mato, P Minten, A Moneta, L Moutoussi, A Qi, N Ranjard, F Rolandi, L Rousseau, D Schlatter, D Schmitt, M Schneider, O Tejessy, W Teubert, F Tomalin, IR Tournefier, E Vreeswijk, M Wachsmuth, H Ajaltouni, Z Badaud, F Chazelle, G Deschamps, O Dessagne, S Falvard, A Ferdi, C Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, JC Pallin, D Perret, P Podlyski, F Hansen, JD Hansen, JR Hansen, PH Nilsson, BS Rensch, B Waananen, A Daskalakis, G Kyriakis, A Markou, C Simopoulou, E Vayaki, A Blondel, A Brient, JC Machefert, F Rouge, A Rumpf, M Tanaka, R Valassi, A Videau, H Focardi, E Parrini, G Zachariadou, K Cavanaugh, R Corden, M Georgiopoulos, C Huehn, T Jaffe, DE Antonelli, A 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 Curtis, L Lynch, JG Negus, P O'Shea, V Raeven, B Raine, C Smith, D Teixeira-Dias, P Thompson, AS Thomson, E Ward, JJ Buchmuller, O Dhamotharan, S Geweniger, C Hanke, P Hansper, G Hepp, V Kluge, EE Putzer, A Sommer, J Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, DM Cameron, W Dornan, PJ Girone, M Goodsir, S Marinelli, N Martin, EB Nash, J Sedgbeer, JK Spagnolo, P Williams, MD Ghete, VM Girtler, P Kneringer, E Kuhn, D Rudolph, G Betteridge, AP Bowdery, CK Buck, PG Colrain, P Crawford, G Ellis, G Finch, AJ Foster, F Hughes, G Jones, RWL Robertson, AN Williams, MI van Gemmeren, P Giehl, I Hoffmann, C Jakobs, K Kleinknecht, K Krocker, M Nurnberger, HA Quast, G Renk, B Rohne, E Sander, HG Schmeling, S Zeitnitz, C Ziegler, T Aubert, JJ Benchouk, C Bonissent, A Carr, J Coyle, P Ealet, A Fouchez, D Motsch, F Payre, P Talby, M Thulasidas, M Tilquin, A Aleppo, M Antonelli, M Ragusa, F Berlich, R Buscher, V Dietl, H Ganis, G Huttmann, K Lutjens, G Mannert, C Manner, W Moser, HG Schael, S Settles, R Seywerd, H Stenzel, H Wiedenmann, W Wolf, G Azzurri, P Boucrot, J Callot, O Chen, S Davier, M Duflot, L Grivaz, JF Heusse, P Jacholkowska, A Kado, M Lefrancois, J Serin, L Veillet, JJ Videau, I de Regie, JBD Zerwas, D Bagliesi, G Bettarini, S Boccali, T Bozzi, C Calderini, G Dell'Orso, R Ferrante, I Giassi, A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, PS Messineo, A Palla, F Rizzo, G Sanguinetti, G Sciaba, A Sguazzoni, G Tenchini, R Vannini, C Venturi, A Verdini, PG Blair, GA Chambers, JT Coles, J Cowan, G Green, MG Medcalf, T Strong, JA von Wimmersperg-Toeller, JH Botterill, DR Clifft, RW Edgecock, TR Norton, PR Thompson, JC Wright, AE Bloch-Devaux, B Colas, P Fabbro, B Faif, G Lancon, E Lemaire, MC Locci, E Perez, P Przysiezniak, H Rander, J Renardy, JF Rosowsky, A Trabelsi, A Tuchming, B Vallage, B Black, SN Dann, JH Kim, HY Konstantinidis, N Litke, AM McNeil, MA Taylor, G Booth, CN Cartwright, S Combley, F Kelly, MS Lehto, M Thompson, LF Affholderbach, K Bohrer, A Brandt, S Foss, J Grupen, C Prange, G Smolik, L Stephan, F Giannini, G Gobbo, B Putz, J Rothberg, J Wasserbaech, S Williams, RW Armstrong, SR Charles, E Elmer, P Ferguson, DPS Gao, Y Gonzalez, S Greening, TC Hayes, OJ Hu, H Jin, S McNamara, PA Nachtman, JM Nielsen, J Orejudos, W Pan, YB Saadi, Y Scott, IJ Walsh, J Wu, SL Wu, X Zobernig, G
Citation
R. Barate et al., Measurement of triple gauge WW gamma couplings at LEP2 using photonic events, PHYS LETT B, 445(1-2), 1998, pp. 239-248
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
445
Issue
1-2
Year of publication
1998
Pages
239 - 248
Database
ISI
SICI code
0370-2693(199812)445:1-2<239:MOTGWG>2.0.ZU;2-V
Abstract
A study of events with photons and missing energy has been performed with t he data sample obtained with the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, corresponding to a total integrated luminosity of abou t 80 pb(-1) The measured distributions are in agreement with Standard Model predictions, leading to constraints on WW gamma gauge coupling parameters Delta kappa(gamma) and lambda(gamma). The results from the fit to the cross sections and to the energy and angular distributions of the photons are: D elta kappa(gamma) = 0.05(-1.10)(+1.15)(stat) +/- 0.25(syst), lambda(gamma) = -0.05(-1.45)(+1.55)(stat) +/- 0.30(syst). (C) 1998 Elsevier Science B.V. All rights reserved.