Measurement of the e(+)e(-)-> ZZ production cross section at centre-of-mass energies of 183 and 189 GeV

Authors
Barate, R Decamp, D Ghez, P Goy, C Jezequel, S Lees, JP Martin, F Merle, E Minard, MN Pietrzyk, B Alemany, R Bravo, S Casado, MP Chmeissani, M Crespo, JM Fernandez, E Fernandez-Bosman, M Garrido, L Grauges, E Juste, A Martinez, M Merino, G Miquel, R Mir, LM Morawitz, P Pacheco, A Riu, I Ruiz, H Colaleo, A Creanza, D 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 Boix, G Buchmuller, O Cattaneo, M Cerutti, F Ciulli, V Davies, G Dissertori, G Drevermann, H Forty, RW Frank, M Gianotti, F Greening, TC Halley, AW Hansen, JB Harvey, J Janot, P Jost, B Lehraus, I Leroy, O Maley, P Mato, P Minten, A Moutoussi, A Ranjard, F Rolandi, L Schlatter, D Schmitt, M Schneider, O Spagnolo, P Tejessy, W Teubert, F Tournefier, E Wright, AE 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 Swynghedauw, M Tanaka, R Valassi, A Videau, H Focardi, E Parrini, G Zachariadou, K Corden, M Georgiopoulos, C 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 Ward, JJ Cavanaugh, R Dhamotharan, S Geweniger, C Hanke, P Hepp, V Kluge, EE Putzer, A Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, DM Cameron, W Dornan, PJ Girone, M Goodsir, S Marinelli, N Martin, EB Nash, J Nowell, J Przysiezniak, H Sciaba, A Sedgbeer, JK Thomson, E Williams, MD Ghete, VM Girtler, P Kneringer, E Kuhn, D Rudolph, G Bowdery, CK Buck, PG Ellis, G Finch, AJ Foster, F Hughes, G Jones, RWL Robertson, NA Smizanska, M Williams, MI 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 Aubert, JJ Bonissent, A Carr, J Coyle, P Ealet, A Fouchez, D Tilquin, A Aleppo, M Antonelli, M Gilardoni, S Ragusa, F 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 Boccali, T Bozzi, C Calderini, G Dell'Orso, R Ferrante, I Giassi, A Gregorio, A Ligabue, F Marrocchesi, PS Messineo, A Palla, F Rizzo, G Sanguinetti, G Sguazzoni, G Tenchini, R Venturi, A Verdini, PG Blair, GA Coles, J Cowan, G Green, MG Hutchcroft, DE Jones, LT Medcalf, T Strong, JA Botterill, DR Clifft, RW Edgecock, TR Norton, PR Thompson, JC Tomalin, IR Bloch-Devaux, B Colas, P Fabbro, B Faif, G Lancon, E Lemaire, MC Locci, E Perez, P Rander, J Renardy, JF Rosowsky, A Seager, P Trabelsi, A Tuchming, B Vallage, B Black, SN Dann, JH Loomis, C Kim, HY Konstantinidis, N Litke, AM McNeil, MA Taylor, G Booth, CN Cartwright, S Combley, F Hodgson, PN Lehto, M Thompson, LF Affholderbach, K Bohrer, A Brandt, S Grupen, C Hess, J Misiejuk, A Prange, G Sieler, U Giannini, G Gobbo, B Putz, J Rothberg, J Wasserbaech, S Williams, RW Armstrong, SR 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, IJ Walsh, J von Wimmersperg-Toeller, JH Wu, SL Wu, X Zobernig, G
Citation
R. Barate et al., Measurement of the e(+)e(-)-> ZZ production cross section at centre-of-mass energies of 183 and 189 GeV, PHYS LETT B, 469(1-4), 1999, pp. 287-302
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
469
Issue
1-4
Year of publication
1999
Pages
287 - 302
Database
ISI
SICI code
0370-2693(199912)469:1-4<287:MOTEZP>2.0.ZU;2-I
Abstract
The e(+)e(-) --> ZZ cross section at root s = 182.7 and 188.6 GeV has been measured using the ALEPH detector. A cut-based analysis yields cross sectio n measurements of sigma(ZZ)(182.7 GeV) = 0.11 +/- (0.16)(0.11) (stat.) +/- 0.04 (syst.) pb and sigma(ZZ)(188.6 GeV) = 0.69 +/- (0.13)(0.12) (stat.) +/- 0.03 (syst.) pb. A neural network-based analysis yields sigma(ZZ)(188.6 GeV) = 0.64 +/- (0.12)(0.11) (stat.) +/- 0.04 (syst.) pb. These measurements are consistent with the Standard Model expectations. (C) 1999 Published by Elsevier Science B.V. All rights reserved.