Experimental limit on the decay W ±→π ±γ at the cern proton-antiproton collider

C Albajar ,V Vuillemin,D Schinzel,F Cavanna,M Markytan,A Gonidec,D Drijard,D Linglin,E Radermacher,W Van De Guchte,B Buschbeck,S Levegrün,M Botlo,M Pimiä,A Placci,G Ciapetti,M Della Negra,J Dorenbosch,G Piano Mortari,H Faissner,A Diciaccio,Y Zolnierowski,K Eggert,M Nikitas,G Bauer,R Martinelli,W Von Schlippe,G Jorat,P Cennini,G Pancheri,D Dau,G Busetto,C Markou,L Naumann,B Mours,M Yvert,R Bonino,D Brockhausen,R Prosi,A Caner,K Bos,E Pietarinen,C Bacci,S Tether,L Zanello,W Jank,P Biddulph,S Otwinowski,G Sajot,Y Lemoigne,K Wacker,A Böhrer,M Rauschkolb,H Tuchscherer,J Gronberg,J Garvey,B Gonzales,M Demoulin,C Rubbia,D Kryn,C Daum,H Dibon,K Ankoviak,I Zacharov,T Moers,D Samyn,P Casoli,S Centro,E Eisenhandler,C.-E Wulz ,B Aubert ,F Szoncsó ,M Mohammadi ,S J Mcmahon ,T Rodrigo ,N Ellis ,K Morgan ,J Colás ,P Nédélec ,D Denegri ,A Morsch ,C Seez ,P Sphicas ,E Petrolo ,L Pontecorvo ,H Castilla‐Valdez ,G Thompson ,C Buchanan ,A Nisati ,O C Allkofer ,S Cittolin ,P Lipa ,V Karimäki ,M Krammer ,V O’dell ,M A Marquina ,S Veneziano ,Bernard Andrieu ,M I Josa ,G Maurin ,M P J Landon ,J P Mendiburu ,D Holthuizen ,A Ferrando ,Jonathan M Gregory ,M Albrow ,P I P Kalmus ,T Virdee ,I F Fensome ,F J Diez Hedo ,A Givernaud ,K Sumorok ,Raúl C Muñoz ,D Robinson ,A T Meneguzzo ,T A Fuess ,L Taylor ,F Lacava ,R Apsimon ,J.-P Merlo ,I R Kenyon ,F Ceradini ,J.p Vialle ,S Bartha ,T C Meyer ,A Geiser ,R Conte ,L Dobrzyński ,Th Müller ,J A Coughlan ,M Vargas ,S Lammel ,R Kinnunen ,C Stubenrauch ,T Shah ,H Böhn ,H Evans ,J P Revol ,G Cox ,E F Clayton ,A Norton ,J Vrána ,J P Porte ,A Bézaguet ,J D Dowell ,L Fortson ,J Salicio ,M Felcini ,Albert Van Dijk ,André Moulin ,H Reithler ,M Passaseo ,E Torrente‐Lujan ,A Bettini ,S A Robins ,X Wu ,J Tuominiemi ,D Cline ,J Rohlf ,F Pauß ,A Taurok ,M Schröder ,D H Stork ,P Zotto

doi:10.1016/0370-2693(90)91294-l

Experimental limit on the decay W ±→π ±γ at the cern proton-antiproton collider

C Albajar , V Vuillemin + Show 162 more

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https://doi.org/10.1016/0370-2693(90)91294-l

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Journal: Physics Letters B	Publication Date: May 1, 1990
Citations: 5	License type: mit

Affiliation: European Organization for Nuclear Research, University of Helsinki, Sapienza University of Rome, RWTH Aachen University, University of Birmingham, Boston University, Queen Mary University of London, Massachusetts Institute of Technology, Kiel University, Imperial College London, Collège de France, University of California, Los Angeles, Rutherford Appleton Laboratory

#CERN Proton-antiproton Collider #UA1 Detector + Show 3 more

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Abstract

We present a search for the decay W ±→π ±γ, using data taken at the CERN proton-antiproton Collider with the UA1 detector and corresponding to an integrated luminosity of 0.7 pb −1. We do not observe a signal for such a process: hence we obtain an upper limit on the π ±γ decay width of 5.8×10 −2Γ (W ±→e ±v) (95%CL).

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