Measurement of W-pair cross sections in e +e − interactions at [formula omitted] and W-decay branching fractions

M Acciarri,S Riemann,Y Uchida,R Faccini,S Petrak,A Gurtu,D Perret-Gallix,G Hu,A Böhm,A Stone,J Busenitz,J Quartieri,I Iashvili,D Kamrad,J Kirkby,Z.A Liu,X.L Wang,E Fiandrini,P Marchesini,J Pothier,L Merola,D Bourilkov,F Filthaut,A Klimentov,A Favara,S Pensotti,G Coignet,C Furetta,H Fesefeldt,J Casaus,B Bertucci,L Lista,M Campanelli,D Prokofiev,H Postema,C Schäfer,T Azemoon,P Duinker,A Baschirotto,G Passaleva,R De Asmundis,G Landi,N Gheordanescu,N Scholz,F Anselmo,B Monteleoni,A Lavorato,M Basile,S Mele,J Berdugo,A Hasan,L Servoli,A Nisati,L Tauscher,M Vivargent,G Gratta,A Buffini,H.K Park,H Rykaczewski,A Biland,S Reucroft,F Cavallari,J Tóth,P Paolucci,L Luminari,J Fay,B.L Betev,S.N Ganguli,G Zilizi,G Mirabelli,P Bagnaia,K Lassila-Perini,V Pojidaev,P Lebrun,F Marzano,M Lebeau,D.H Kim,C Li,D Schmitz,L Romero,A Engler,E Valente,S Paoletti,A Aloisio,B De La Cruz,A Buijs,K Sudhakar,C Timmermans,D Peach,D Kirkby,L Barone,S Schmidt-Kaerst,P Extermann,W Krenz,J Xu,F Ziegler,R Clare,D Haas,M Cerrada,J Shukla,T Aziz,L Malgeri,M Gataullin,I Vetlitsky,G Sultanov,G Organtini,A Mihul,U Becker,K Deiters,P Bartalini,J Salicio,V Shoutko,D Ren,Z.M Wang,G Ambrosi,K Banicz,P Laurikainen,K Freudenreich,P Levtchenko,A Arefiev,F.L Linde,S Nahn,P Berges,A Shvorob,Z.P Zhang,K Riles,Y Zeng,P Lecoq,D Kim,A Lebedev,F Denotaristefani,W.G Ma,I.H Park,H.F Chen,P Denes,D Duchesneau,D Luckey,S Shevchenko,D Della Volpe,A Nippe,C Civinini,P Le Coultre,S Sakar,G Schwering,P Lecomte,B Borgia,S Easo,J Goldstein,F Ferroni,M Steuer,H Anderhub,M Chemarin,J.K Kim,G Chen,M Kaur,G Majumder,G Raven,S Banerjee,G Chiefari,R Leiste,F Behner,A Degré,G Marian,C Lapoint,L Baksay,M Biasini,W Wallraff,Yu Galaktionov,L Cifarelli,F Muheim,P Lacentre,A Kirkby,N Raja,A Pevsner,A Vorvolakos,F Cotorobai,H Schopper,M Wadhwa,A Dominguez,J.C Wang,G.M Chen,S Braccini,D Migani,V Koutsenko,N Colino,H Vogt,H.S Chen,M Diemoz,C Palomares,F Becattini,E Pistolesi,A Chen,T Moulik,M Rattaggi,L Taylor,J Rodin,S Falciano,C Luci,R Moore,J.B Ye,M Chamizo,M Felcini,M Pohl,F Di Lodovico,Samuel C.C Ting,H.J Lee,F Cindolo,T Paul,G Viertel,T Hebbeker,I Vorobiev,D Hatzifotiadou,E Shumilov,J Alcaraz,C Cecchi,C Sciacca,D Son,M Rescigno,G Vesztergombi,N Produit,D Mangeol,M Pieri,T Van Rhee,A Gougas,J Hirschfelder,N Cavallo,P.G Rancoita,M Pedace,G Castellini,H El Mamouni,V Plyaskin,S Gentile,H Milcent,L Fredj,R Barillère,K Lübelsmeyer,N Shivarov,P Hidas,M Meschini,M Bourquin,G Carlino,S.C Kim,S Goldfarb,A Hervé,B Hartmann,R Battiston,A Robohm,P De Jong,W Lohmann,A Kunin,C Tully,A Straessner,J Allaby,B Stoyanov,H Hofer,W Lustermann,H Suter,M Maity,S Patricelli,W Lu,J Schwenke,T Ferguson,I Clare,G Rahal-Callot,M Napolitano,G Alemanni,P Zemp,A Doria,J Mnich,I Korolko,E Longo,F Cesaroni,A Button,D Ruschmeier,S Vlachos,A Barczyk,A Zichichi,M Pauluzzi,D Piccolo,R Mount,H Nowak,R Van Gulik,T Angelescu,S Costantini,R Ostonen,H Vogel,C Dionisi,S Wynhoff,I Fisk,A Weber,M Capell,M Dittmar,B Zhou,C Paus,T Siedenburg,S Giagu,K Mazumdar,W Kittel,A Bay,D Kiss,J Ulbricht,D Pandoulas,D Sciarrino,F.C Erné,Y Zalite ,S X Wu ,G Forconì ,S Hou ,А Малинин ,J A Rubio ,S M Ting ,R W Kraemer ,I C Brock ,R Böck ,Gennaro De Pascale ,R Y Zhu ,P A Razis ,B Z Yang ,P Ladrón De Guevara ,P Piroué ,Z Xu ,V Brigljević ,S Blyth ,A A Vorobyov ,M T Dova ,M N Kienzle‐Focacci ,H R Hoorani ,H J Yang ,J H Field ,J G Branson ,J M You ,A Maŕın ,F Pauß ,L Boldizsár ,Y H Chang ,M Aguilar-Benı́tez ,A C König ,R R Mcneil ,V Andreev ,S P Ahlen ,I Durán ,F Nessi‐Tedaldi ,S Rosier‐Lees ,S C Tonwar ,R D’alessandro ,J Kapustinsky ,P Garcı́a-Abia ,Y D Oh ,П Спиллантини ,B A Petersen ,C Y Chien ,A K Kopp ,A J.w Van Mil ,X D Cai ,G Susinno ,B N Jin ,W Lin ,L Z Sun ,L Gutay ,S S Gau ,X Chéreau ,G M Bilei ,D Van Dierendonck ,W W Kinnison ,R A Khan ,G Massaro ,L W Jones ,I B Laktineh ,J P Martin ,G S Muanza ,Giovanni Romeo ,J J Blaising ,W C Van Hoek ,O L Fedin ,X W Tang ,Michel Fabre ,A J.m Muijs ,C G Yang ,A Zalite ,B P Roe ,G J Bobbink ,U K Chaturvedi ,W J Metzger ,A M Cartacci ,D Stickland ,M Von Der Mey ,J Swain ,P H Fisher ,E Sánchez ,Howard A Stone ,M W Gruenewald ,S C Yeh ,V A Schegelsky ,K L Tung ,Z F Gong ,T Nießen ,Min Yang ,M E Sarakinos ,M P Sanders ,C H Lin ,W J Burger ,C Mañá ,Bryan Smith ,G Y Zhu ,J D Burger ,I Josa-Mutuberrı́a ,Péter Molnár ,J M Le Goff ,F J Eppling ,Stefan Roth ,A P Colijn ,T Dai ,О Адриани ,Y S Lu ,Y J Pei ,Virendra K Gupta ,D J Schotanus ,Santi R Palit ,M G Alviggi ,M A Falagán ,Emanuele Leonardi ,Á Csilling ,H B Newman ,Saptaparna Bhattacharya

doi:10.1016/s0370-2693(98)01036-3

Measurement of W-pair cross sections in e +e − interactions at [formula omitted] and W-decay branching fractions

M Acciarri, S Riemann + Show 422 more

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https://doi.org/10.1016/s0370-2693(98)01036-3

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#Cross Section For W-pair Production #High Invariant Masses + Show 8 more

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Abstract

We report on the measurement of W-boson pair-production with the L3 detector at LEP. In a data sample corresponding to a total luminosity of 55.47 pb −1 collected at an average centre-of-mass energy of 182.68 GeV , we select 824 four-fermion events with pairs of hadronic jets or pairs of leptons with high invariant masses. Branching fractions of W decays into different fermion-antifermion pairs are determined. Assuming charged-current lepton universality, the branching fraction for hadronic W decays is measured to be: B( W→hadrons)=70.1±1.3 (stat.)±0.4 (syst.) % . Combining all final states the total cross section for W-pair production is measured to be: σ WW =16.53±0.67 (stat.)±0.26 (syst.) pb.

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