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

C. Albajar, M. G. Albrow, O. C. Allkofer, B. Andrieu, K. Ankoviak, R. Apsimon, B. Aubert, C. Bacci, S. Bartha, G. Bauer, A. Bettini, A. Bezaguet, P. Biddulph, H. Bohn, A. Böhrer, R. Bonino, K. Bos, M. Botlo, D. Brockhausen, C. BuchananB. Buschbeck, G. Busetto, A. Caner, P. Casoli, H. Castilla-Valdez, F. Cavanna, P. Cennini, S. Centro, F. Ceradini, G. Ciapetti, S. Cittolin, E. Clayton, D. Cline, J. Colas, R. Conte, J. A. Coughlan, G. Cox, D. Dau, C. Daum, M. Della Negra, M. Demoulin, D. Denegri, H. Dibon, A. Diciaccio, F. J. Diez Hedo, L. Dobrzynski, J. Dorenbosch, J. D. Dowell, D. Drijard, K. Eggert

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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).

Original languageEnglish (US)
Pages (from-to)283-288
Number of pages6
JournalPhysics Letters B
Volume241
Issue number2
DOIs
StatePublished - May 10 1990

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