Measurement of the e +e −→ZZ production cross section at centre-of-mass energies of 183 and 189 GeV

R Barate,S Xue,B Fabbro,O Schneider,K Affholderbach,S Dhamotharan,K Tittel,F Gianotti,P Morawitz,G Boix,F Murtas,P Colas,C Loomis,I Lehraus,I Videau,V Hepp,H Ruiz,M Kröcker,S Schael,T.C Greening,F Combley,F Teubert,B.S Nilsson,C Mannert,P Girtler,P.G Buck,J Nowell,D Schlatter,A Valassi,F Bossi,B Bloch-Devaux,C Guicheney,W Tejessy,H Dietl,H Wachsmuth,F Podlyski,J.G Lynch,A Ranieri,E Merle,W Männer,M De Palma,G Parrini,H.-A Nürnberger,W Orejudos,Y Saadi,B Vallage,A Antonelli,Q Ouyang,M Chmeissani,B Pietrzyk,P Coyle,S Schmeling,S Werner,B Rensch,J.H Dann,I Ferrante,G Bologna,C Geweniger,C Markou,F Ruggieri,U Sieler,G Prange,S Bravo,G Bencivenni,A Rougé,F Ranjard,P Seager,A Trabelsi,G.A Blair,O.J Hayes,E Simopoulou,A Ealet,B Renk,C Ferdi,R Beuselinck,E Thomson,P Maley,R Alemany,G Capon,B Jost,A Gregorio,C Bozzi,F Hölldorfer,G Ellis,S.R Armstrong,A Pacheco,A Wäänänen,P Campana,J Kile,F Badaud,G Chazelle,M Pepe-Altarelli,Ll Garrido,F Machefert,B Raeven,S Goodsir,E Rohne,F Foster,W Cameron,L Passalacqua,G Calderini,G Rizzo,P Tempesta,S Monteil,J Boucrot,M Corden,T Medcalf,O Callot,H Seywerd,G Merino,G Giannini,D Fouchez,R Xu,G Hughes,K Hüttmann,A Blondel,J Lefrançois,J Jousset,H Przysiezniak,A Vayaki,A Putzer,A Moutoussi,M Wunsch,A Minten,H Drevermann,P Perret,M Swynghedauw,H Videau,K Zachariadou,S Dessagne,A Misiejuk,G Rudolph,G Lütjens,P Henrard,C Georgiopoulos,E Tournefier,M.-N Minard,A Böhrer,S Jin,M Davier,I Giehl,G Sanguinetti,M Aleppo,B Michel,G Mannocchi,C Zeitnitz,J Rothberg,B Tuchming,R Settles,J Heß ,P R Norton ,N A Robertson ,E Fernández ,J.M Crespo,G Bagliesi,P Spagnolo,G Zobernig,A Bonissent,E Graugés ,G Quast,M Frank,G Sguazzoni,M.A Mcneil,F Ligabue,G Faı̈f ,R Forty ,B Gobbo,A J Finch ,N Marinelli,G Zito,Jane Coles ,J Lin,P Elmer,G Daskalakis,J H Von Wimmersperg-Toeller ,P Mató ,C Goy,M Martı́nez ,J P Lees ,G Wolf,C K Bowdery ,T Boccali,W Wiedenmann,S L Cartwright ,G Ganis,A Jachołkowska ,J R Hansen ,S Nuzzo,D M Binnie ,E Focardi,A Messineo,S Gilardoni,S González,J K Sedgbeer ,Siegmund Brandt ,E Lançon,L Zhang,J Rander,L M Mir ,H G Sander ,R W L Jones ,A Juste Rozas ,A Venturi,P H Hansen ,M Antonelli,F Palla,M C Lemaire ,Р Тенчини ,J Pütz ,X T Huang ,J.-F Grivaz,H Hu,J Harvey,W Zhao,P J Dornan ,S Wasserbaech,F Ragusa,T Wang,N Konstantinidis,L.F Thompson,J Walsh,D Smith,J Zhang,D Abbaneo,F Cerutti,L Curtis,M.G Green,A Colaleo,E Locci,A Giassi,D Décamp ,C.N Booth,K Jakobs,J C Montret ,V Büscher,G Cowan,G Selvaggi,G Mäggi ,F F Martin ,R W Clifft ,D.P.S Ferguson,A S Thompson ,P Janot,D Creanza,I R Tomalin ,E Kneringer,R Tanaka,P Pérez ,S Jézéquel ,E B Martin ,A.E Wright,D Zerwas,M Schmitt,Matthew Chalmers ,K Kleinknecht,J.C Thompson,M Smižanská ,D Botterill ,L Silvestris,M Fernández-Bosman ,P Negus,A Tilquin,M Lehto,J.J Aubert,G Davies,P.a Mcnamara ,P Teixeira-Dias,V M Ghete ,O Buchmüller,J.b De Vivie De Regie ,M.I Williams,P Azzurri,C Grupen,J J Ward ,J J Veillet ,A M Litke ,A.W Halley,D E Hutchcroft ,G Rolandi ,J Nielsen,Y S Gao ,Y Pan ,A Rosowsky,M Williams ,M Maggi,V Chiarella,A Falvard,J B Hansen ,L.T Jones,X Wu,T Ziegler,D Pallin,H G Moser ,P Heusse ,R Cavanaugh,M Cattaneo,A Kyriakis,L Serin,R.W Williams,V Ciulli,Z Ajaltouni,J D Hansen ,P Hanke,A.‐S Müller ,S.N Black,M Kado,G Iaselli,G N Taylor ,S Chen,Philippe Ghez ,J F Renardy ,P G Verdini ,R Miquel,M P Casado ,S L Wu ,Y Xie,A Tricomi,H Stenzel,G Raso,J C Brient ,P S Marrocchesi ,T.R Edgecock,R Dell’orso ,J Carr,I Scott ,V O’shea ,J A Strong ,I Riu,A Sciabà,G Dissertori,O Leroy,O Deschamps,J Nash,L Duflot,P Hodgson ,E E Kluge ,C Raine,P Laurelli,H.Y Kim,M Girone,D Kühn

doi:10.1016/s0370-2693(99)01288-5

Measurement of the e +e −→ZZ production cross section at centre-of-mass energies of 183 and 189 GeV

R Barate, S Xue + Show 339 more

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https://doi.org/10.1016/s0370-2693(99)01288-5

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#ZZ Production Cross Section #ZZ Cross Section + Show 8 more

Abstract
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Abstract

The e +e −→ZZ cross section at s =182.7 and 188.6 GeV has been measured using the ALEPH detector. A cut-based analysis yields cross section measurements of σ ZZ (182.7 GeV )=0.11± 0.16 0.11 ( stat.)±0.04 ( syst.) pb and σ ZZ (188.6 GeV )=0.69± 0.13 0.12 ( stat.)±0.03 ( syst.) pb . A neural network-based analysis yields σ ZZ (188.6 GeV )=0.64± 0.12 0.11 ( stat.)±0.04 ( syst.) pb . These measurements are consistent with the Standard Model expectations.

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