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Measurement of Triple Gauge-Boson Couplings at LEP energies up to 189 GeV

A. Heister S. Schael R. Barate 1 I. de Bonis 1 D. Decamp 1 P. Ghez 1 C. Goy 1 S. Jezequel 1 J P. Lees 1 F. Martin 1 E. Merle 1 M N. Minard 1 B. Pietrzyk 1 B. Trocme 1 S. Bravo M P. Casado M. Chmeissani J M. Crespo E. Fernandez M. Fernandez-Bosman L. Garrido E. Grauges J. Lopez M. Martinez G. Merino R. Miquel L M. Mir A. Pacheco D. Paneque H. Ruiz A. Colaleo D. Creanza N. de Filippis M. de Palma G. Iaselli G. Maggi M. Maggi S. Nuzzo A. Ranieri G. Raso F. Ruggieri G. Selvaggi L. Silvestris P. Tempesta A. Tricomi G. Zito X. Huang Jiali Lin Q. Ouyang T. Wang Y. Xie R. Xu S. Xue J. Zhang L. Zhang W. Zhao D. Abbaneo P. Azzurri T. Barklow G. Boix O. Buchmueller M. Cattaneo F. Cerutti B. Clerbaux G. Dissertori H. Drevermann R W. Forty M. Frank F. Gianotti T C. Greening J B. Hansen J. Harvey D E. Hutchcroft P. Janot B. Jost M. Kado V. Lemaitre P. Maley P. Mato A. Moutoussi F. Ranjard L. Rolandi D. Schlatter P. Spagnolo W. Tejessy F. Teubert E. Tournefier A. Valassi J J. Ward a E. Wright Ziad Ajaltouni 2 F. Badaud 2 S. Dessagne 2 Alain Falvard 2 D. Fayolle 2 Pascal Gay 2 Pierre Henrard 2 J. Jousset 2 B. Michel 2 S. Monteil 2 Jean-Claude Montret 2 D. Pallin 2 J M. Pascolo 2 Pascal Perret 2 F. Podlyski 2 J D. Hansen J R. Hansen P H. Hansen B S. Nilsson A. Waananen G. Daskalakis A. Kyriakis C. Markou E. Simopoulou A. Vayaki A. Blondel 3 J C. Brient 3 F. Machefert 3 A. Rouge 3 M. Swynghedauw 3 R. Tanaka 3 H. Videau 3 E. Focardi G. Parrini K. Zachariadou A. Antonelli M. Antonelli G. Bencivenni G. Bologna F. Bossi P. Campana G. Capon V. Chiarella P. Laurelli G. Mannocchi F. Murtas G P. Murtas L. Passalacqua M. Pepe-Altarelli M. Chalmers a W. Halley J. Kennedy J G. Lynch P. Negus V. O'Shea B. Raven D. Smith a S. Thompson S. Wasserbaech R. Cavanaugh S. Dhamotharan C. Geweniger P. Hanke V. Hepp E E. Kluge G. Leibenguth A. Putzer K. Tittel S. Werner M. Wunsch R. Beuselinck D M. Binnie W. Cameron G. Davies P J. Dornan M. Girone N. Marinelli J. Nowell H. Przysiezniak S. Rutherford J K. Sedgbeer J C. Thompson R. White V M. Ghete P. Girtler E. Kneringer D. Kuhn G. Rudolph E. Bouhova-Thacker C K. Bowdery D P. Clarke G. Ellis a J. Finch F. Foster G. Hughes R W L. Jones M R. Pearson N A. Robertson M. Smizanska I. Giehl F. Hoelldorfer K. Jakobs K. Kleinknecht M. Kroecker a S. Mueller H A. Nuernberger G. Quast B. Renk E. Rohne H G. Sander S. Schmeling H. Wachsmuth C. Zeitnitz T. Ziegler A. Bonissent 4 J. Carr 4 P. Coyle 4 C. Curtil 4 A. Ealet 4 D. Fouchez 4 O. Leroy 4 T. Kachelhoffer 4 P. Payre 4 D. Rousseau 4 A. Tilquin 4 M. Aleppo S. Gilardoni F. Ragusa A. David H. Dietl G. Ganis K. Huettmann G. Luetjens C. Mannert W. Manner H G. Moser R. Settles H. Stenzel G. Wolf J. Boucrot 5 O. Callot 5 M. Davier 5 L. Duflot 5 J F. Grivaz 5 P. Heusse 5 A. Jacholkowska 5 L. Serin 5 J J. Veillet 5 I. Videau 5 J B. de Vivie de Regie 5 C. Yuan 5 G. Bagliesi T. Boccali G. Calderini V. Ciulli L. Foa A. Giammanco A. Giassi F. Ligabue A. Messineo F. Palla G. Sanguinetti A. Sciaba G. Sguazzoni R. Tenchini A. Venturi P G. Verdini O. Awunor G A. Blair J. Coles G D. Cowan A. Garcia-Bellido M G. Green L T. Jones T. Medcalf A. Misiejuk J A. Strong P. Teixeira-Dias R W. Clifft T R. Edgecock P R. Norton I R. Tomalin B. Bloch-Devaux D. Boumediene P. Colas B. Fabbro E. Lancon M C. Lemaire E. Locci P. Perez J. Rander J F. Renardy A. Rosowsky P. Seager A. Trabelsi B. Tuchming B. Vallage N. Konstantinidis a M. Litke C. Loomis G. Taylor C N. Booth S. Cartwright F. Combley P N. Hodgson M H. Lehto L F. Thompson K. Affholderbach A. Boehrer S. Brandt C. Grupen J. Hess A. Ngac G. Prange U. Sieler C. Borean G. Giannini H. He J. Puetz J E. Rothberg S R. Armstrong K. Cranmer P. Elmer D P S. Ferguson Y. Gao S. Gonzalez O J. Hayes H. Hu S. Jin J. Kile P A. Mcnamara J. Nielsen W. Orejudos y B. Pan Y. Saadi I J. Scott J H. von Wimmersperg-Toeller J. Walsh W. Wiedenmann J. Wu S L. Wu X. Wu G. Zobernig
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 of 183 GeV and 189 GeV, corresponding to integrated luminosities of 57 pb^-1 and 174 pb^-1, respectively. The couplings, g^Z_1, Kappa_gamma and lambda_gamma, are measured using W-pair events, single-W production and single-gamma production. Each coupling is measured individually with the other two coupling 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 Dg^Z_1 0.141 -0.200 DKappa_gamma 0.258 -0.062 Lambda_gamma 0.147. Fits are also presented where two or all three couplings are allowed to vary. In addition, W-pair events are used to set limits on the C- or P-violating couplings g^V_4, g^V_5, Kappa_V, and Lambda_V, where V denotes either gamma or Z. No deviations from the Standard Model expectations are observed.
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Submitted on : Friday, February 8, 2002 - 5:20:18 PM
Last modification on : Tuesday, October 19, 2021 - 10:50:09 PM
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  • HAL Id : in2p3-00010948, version 1
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A. Heister, S. Schael, R. Barate, I. de Bonis, D. Decamp, et al.. Measurement of Triple Gauge-Boson Couplings at LEP energies up to 189 GeV. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2001, 21, pp.423-441. ⟨in2p3-00010948⟩

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