Bose–Einstein correlations in W-pair decays with an event-mixing technique

S Schael,A Ranieri,A Bonissent,B Bloch-Devaux,H Wachsmuth,H Drevermann,E Locci,H Stenzel,P Laurelli,K Berkelman,G Iaselli,F Ragusa,T Wang,P Colas,L Silvestris,P Negus,J Zhang,W Zhao,D.P.S Ferguson,F Kayser,G Leibenguth,G Lütjens,O Awunor,A Valassi,C Curtil,K Zachariadou,L Serin,F Bossi,E Lançon,L Foà,T Boccali,A Kyriakis,J Lin,L Zhang,A Rougé,M Antonelli,S Nuzzo,U Blumenschein,M Villegas,W Wiedenmann,D Schlatter,G Giannini,G Davies,J Boucrot,S Dessagne,P Tempesta,R Barate,W Männer,K Kleinknecht,G Mannocchi,R Xu,C Zeitnitz,C Delaere,T Medcalf,E Focardi,M Lehto,K Tittel,M Wunsch,H Videau,P Spagnolo,J Rander,F Ligabue,G Raso,F Teubert,R White,V Chiarella,D Boumediene,N Marinelli,G Parrini,G Zobernig,H Dietl,A Tricomi,G Ganis,G Bagliesi,J Jousset,J.C Thompson,V Hepp,J.M Pascolo,G Selvaggi,S González,A Ngac,R Brunelière,K Cranmer,O.J Hayes,F Badaud,C Geweniger,C Borean,G.A Blair,A Misiejuk,F Ruggieri,A Moutoussi,V Ciulli,T Ziegler,P Perret,B Tuchming,J Harvey,H Hu,G Sguazzoni,H He,M Cattaneo,D Pallin,P Janot,A Giammanco,J Nielsen,D Fouchez,M Chmeissani,M.-N Minard,P Girtler,L Duflot,I Videau,A Colaleo,K Jakobs,D Creanza,B.S Nilsson,C Markou,S Dhamotharan,G Wolf,P Hanke,S Wasserbaech,F Combley,A Messineo,F Palla,X Wu,F Hölldorfer,B Renk,O Buchmüller,B Trocmé,S Schmeling,G Prange,Y Xie,O Callot,A Böhrer,M Davier,R Beuselinck,G Rudolph,H Ruiz,F Cerutti,P Payre,A Giassi,M Girone,Q Ouyang,P Azzurri,A Ealet,S.A Rutherford,F Machefert,A Vayaki,A Venturi,P Teixeira-Dias,P Coyle,J.M Crespo,J.G Lynch,M Maggi,B Fabbro,B Clerbaux,S.R Armstrong,A Antonelli,W Cameron,G Capon,R Cavanaugh,S Xue,A Putzer,Ll Garrido,E Merle,I De Bonis,G Cowan,G Ellis,S Monteil,C Goy,K Hüttmann,D Fayolle,P.A Mcnamara,F Gianotti,L.F Thompson,A David,A Blondel,S Jin,L Passalacqua,R Settles,M Frank,D Abbaneo,B Vallage,C Grupen,E Simopoulou,T Barklow,F Foster,A Falvard,G Sanguinetti,B Pietrzyk,G Hughes,G Bencivenni,J Nowell,M Kado,S Bravo,J Kile,G Zito,A Tilquin,J Rothberg,S Jézéquel,E Kneringer,J.-F Grivaz,A Sciabà,A Pacheco,F Ranjard,B Jost,B Michel,J Kennedy,M Smižanská ,J Heß ,A Jachołkowska ,Der Aa O Van ,J R Hansen ,M R Pearson ,P J Dornan ,J K Sedgbeer ,M P Casado ,J C Brient ,D Décamp ,S L Wu ,P G Verdini ,N A Robertson ,J J Veillet ,C K Bowdery ,S L Cartwright ,M Martı́nez ,A Kraan ,J B Hansen ,J Pütz ,J J Ward ,P Heusse ,X T Huang ,J D Hansen ,A S Thompson ,D Hutchcroft ,P Hodgson ,Jian Wu ,A.‐S Müller ,D Kühn ,I R Tomalin ,Y B Pan ,R W L Jones ,Palma M De ,P Pérez ,V Lemaı̂tre ,M C Lemaire ,C N Booth ,J P Lees ,P R Norton ,V O’shea ,H G Sander ,J Guenther ,Y S Gao ,J A Strong ,E V Bouhova-Thacker ,Filippis N De ,G Mäggi ,F Murtas ,Danielle Clarke ,A M Litke ,G Rolandi ,M G Green ,M Fernández-Bosman ,V M Ghete ,Wimmersperg-Töller J H Von ,A García-Bellido ,E Fernández ,P H Hansen ,R Edgecock ,R W Clifft ,E.-E Kluge ,R Forty ,G N Taylor ,P Mató ,F F Martin ,A J Finch ,Р Тенчини ,Siegmund Brandt

doi:10.1016/j.physletb.2004.12.018

Bose–Einstein correlations in W-pair decays with an event-mixing technique

S Schael, A Ranieri + Show 274 more

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https://doi.org/10.1016/j.physletb.2004.12.018

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#Bose Einstein Correlations #Event-mixing Technique + Show 3 more

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Abstract

Bose–Einstein correlations in W-pair decays are studied using data collected by the ALEPH detector at LEP at e+e− centre-of-mass energies from 183 to 209 GeV. The analysis is based on the comparison of WW→qq¯qq¯ events to “mixed” events constructed with the hadronic part of WW→qq¯ℓν events. The data are in agreement with the hypothesis that Bose–Einstein correlations are present only for pions from the same W decay. The JETSET model with Bose–Einstein correlations between pions from different W bosons is disfavoured.

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