Constraints on anomalous QGC's in $e^{+}e^{-}$ interactions from 183 to 209 GeV

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The acoplanar photon pairs produced in the reaction e+ e- --> nu nubar gamma gamma are analysed in the 700 inverse nanobarns of data collected by the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. No deviation from the Standard Model predictions is seen in any of the distribut...

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Autores principales: Heister, A, Schael, S, Barate, R, Brunelière, R, De Bonis, I, Décamp, D, Goy, C, Jézéquel, S, Lees, J P, Martin, F, Merle, E, Minard, M N, Pietrzyk, B, Trocmé, B, Bravo, S, Casado, M P, Chmeissani, M, Crespo, J M, Fernández, E, Fernández-Bosman, M, Garrido, L, Martínez, M, Pacheco, A, 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, Barklow, T, Buchmüller, O L, Cattaneo, M, Clerbaux, B, Drevermann, H, Forty, R W, Frank, M, Gianotti, F, Hansen, J B, Harvey, J, Hutchcroft, D E, Janot, P, Jost, B, Kado, M, Mato, P, Moutoussi, A, Ranjard, F, Rolandi, Luigi, Schlatter, W D, Sguazzoni, G, Teubert, F, Valassi, Andrea, Videau, I, Badaud, F, Dessagne, S, Falvard, A, Fayolle, D, Gay, P, Jousset, J, Michel, B, Monteil, S, Pallin, D, Pascolo, J M, Perret, P, Hansen, J D, Hansen, J R, Hansen, P H, Kraan, A C, Nilsson, B S, Kyriakis, A, Markou, C, Simopoulou, Errietta, Vayaki, Anna, Zachariadou, K, Blondel, A, Brient, J C, Machefert, F P, Rougé, A, Videau, H L, Ciulli, V, Focardi, E, Parrini, G, Antonelli, A, Antonelli, M, Bencivenni, G, Bossi, F, Capon, G, Cerutti, F, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, G P, Passalacqua, L, Kennedy, J, Lynch, J G, Negus, P, O'Shea, V, Thompson, A S, Wasserbaech, S R, Cavanaugh, R J, Dhamotharan, S, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Putzer, A, Stenzel, H, Tittel, K, Wunsch, M, Beuselinck, R, Cameron, W, Davies, G, Dornan, P J, Girone, M, Hill, R D, Marinelli, N, Nowell, J, Rutherford, S A, Sedgbeer, J K, Thompson, J C, White, R, Ghete, V M, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bouhova-Thacker, E, Bowdery, C K, Clarke, D P, Ellis, G, Finch, A J, Foster, F, Hughes, G, Jones, R W L, Pearson, M R, Robertson, N A, Smizanska, M, van der Aa, O, Delaere, C, Leibenguth, G, Lemaître, V, Blumenschein, U, Hölldorfer, F, Jakobs, K, Kayser, F, Kleinknecht, K, Müller, A S, Renk, B, Sander, H G, Schmeling, S, Wachsmuth, H W, Zeitnitz, C, Ziegler, T, Bonissent, A, Coyle, P, Curtil, C, Ealet, A, Fouchez, D, Payre, P, Tilquin, A, Ragusa, F, David, A, Dietl, H, Ganis, G, Hüttmann, K, Lütjens, G, Männer, W, Moser, H G, Settles, Ronald, Villegas, M, Wolf, G, Boucrot, J, Callot, O, Davier, M, Duflot, L, Grivaz, J F, Heusse, P, Jacholkowska, A, Serin, L, Veillet, J J, Azzurri, P, Bagliesi, G, Boccali, T, Foà, L, Giammanco, A, Giassi, A, Ligabue, F, Messineo, A, Palla, F, Sanguinetti, G, Sciabà, A, Spagnolo, P, Tenchini, R, Venturi, A, Verdini, P G, Awunor, O, Blair, G A, Cowan, G, García-Bellido, A, Green, M G, Medcalf, T, Misiejuk, A, Strong, J A, Teixeira-Dias, P, Clifft, R W, Edgecock, T R, Norton, P R, Tomalin, I R, Ward, J J, Bloch-Devaux, B, Boumediene, D E, Colas, P, Fabbro, B, Lançon, E, Lemaire, M C, Locci, E, Pérez, P, Rander, J, Tuchming, B, Vallage, B, Litke, A M, Taylor, G, Booth, C N, Cartwright, S, Combley, F, Hodgson, P N, Lehto, M H, Thompson, L F, Böhrer, A, Brandt, S, Grupen, C, Hess, J, Ngac, A, Prange, G, Borean, C, Giannini, G, He, H, Pütz, J, Rothberg, J E, Armstrong, S R, Berkelman, K, Cranmer, K, Ferguson, D P S, Gao, Y, González, S, Hayes, O J, Hu, H, Jin, S, Kile, J, McNamara, P A, Nielsen, J, Pan, Y B, Von Wimmersperg-Töller, J H, Wiedenmann, W, Wu, J, Wu Sau Lan, Wu, X, Zobernig, G, Dissertori, G
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/705799
Descripción
Sumario:The acoplanar photon pairs produced in the reaction e+ e- --> nu nubar gamma gamma are analysed in the 700 inverse nanobarns of data collected by the ALEPH detector at centre-of-mass energies between 183 and 209 GeV. No deviation from the Standard Model predictions is seen in any of the distributions examined. The resulting 95% C.L. limits set on the anomalous QGC's, az_0, az_c, aw_0 and aw_c, are -0.012 GeV**-2 < az_0/Lambda**2 < +0.019 GeV**-2, -0.041 GeV**-2 < az_c/Lambda**2 < +0.044 GeV**-2, -0.060 GeV**-2 < aw_0/Lambda**2 < +0.055 GeV**-2, -0.099 GeV**-2 < aw_c/Lambda**2 < +0.093 GeV**-2, where Lambda is the energy scale of the new Physics responsible for the anomalous couplings.

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