Search For The Rare Decay W-+/-->Pi(+/-)+Gamma

F. Abe,M. Albrow,S. Amendolia, D. Amidei, J. Antos,C. Anway-Wiese, G. Apollinari, H. Areti,M. Atac,P. Auchincloss, F. Azfar,P. Azzi,N. Bacchetta,W. Badgett,M. Bailey, J. Bao,P. de Barbaro, A. Barbaro-Galtieri,V. Barnes, B. Barnett,P. Bartalini,G. Bauer,T. Baumann,F. Bedeschi,S. Behrends, S. Belforte, G. Bellettini, J. Bellinger,D. Benjamin,J. Benlloch,J. Bensinger,D. Benton, A. Beretvas,J. Berge,S. Bertolucci, A. Bhatti,K. Biery,M. Binkley, F. Bird, D. Bisello,R. Blair,C. Blocker,A. Bodek,W. Bokhari,V. Bolognesi, D. Bortoletto,C. Boswell,T. Boulos,G. Brandenburg,C. Bromberg,E. Buckley-Geer,H. Budd, K. Burkett,G. Busetto,A. Byon-Wagner,K. Byrum,J. Cammerata,C. Campagnari,M. Campbell,A. Caner,W. Carithers, D. Carlsmith,A. Castro,Y. Cen,F. Cervelli,H. Chao,J. Chapman,M.-T. Cheng,G. Chiarelli,T. Chikamatsu,C. Chiou,L. Christofek, S. Cihangir,A. Clark,M. Cobal, M. Contreras,J. Conway,J. Cooper,M. Cordelli,C. Couyoumtzelis,D. Crane,J. Cunningham,T. Daniels,F. DeJongh,S. Delchamps,S. Dell'Agnello,M. Dell'Orso,L. Demortier,B. Denby, M. Deninno,P. Derwent,T. Devlin,M. Dickson, J. Dittmann,S. Donati,R. Drucker,A. Dunn, K. Einsweiler,J. Elias,R. Ely,E. Engels, Jr., S. Eno, D. Errede, S. Errede,Q. Fan,B. Farhat,I. Fiori,B. Flaugher,G. Foster, M. Franklin,M. Frautschi, J. Freeman,J. Friedman, H. Frisch,A. Fry,T. Fuess,Y. Fukui,S. Funaki,G. Gagliardi,S. Galeotti,M. Gallinaro, A. Garfinkel,S. Geer, D. Gerdes,P. Giannetti, N. Giokaris,P. Giromini, L. Gladney,D. Glenzinski,M. Gold,J. Gonzalez, A. Gordon,A. Goshaw, K. Goulianos, H. Grassmann,A. Grewal,L. Groer,C. Grosso-Pilcher, C. Haber,S. Hahn,R. Hamilton,R. Handler,R. Hans, K. Hara,B. Harral,R. Harris,S. Hauger, J. Hauser,C. Hawk,J. Heinrich, D. Cronin-Hennessy, R. Hollebeek,L. Holloway,A. Hölscher,S. Hong,G. Houk,P. Hu,B. Huffman, R. Hughes,P. Hurst, J. Huston, J. Huth,J. Hylen,M. Incagli, J. Incandela,H. Iso,H. Jensen,C. Jessop, U. Joshi,R. Kadel,E. Kajfasz, T. Kamon,T. Kaneko,D. Kardelis,H. Kasha,Y. Kato,L. Keeble,R. Kennedy,R. Kephart,P. Kesten,D. Kestenbaum, R. Keup,H. Keutelian,F. Keyvan,D. Kim,H. Kim, S. Kim,Y. Kim, L. Kirsch,P. Koehn,K. Kondo, J. Konigsberg,S. Kopp,K. Kordas,W. Koska,E. Kovacs,W. Kowald,M. Krasberg, J. Kroll, M. Kruse, S. Kuhlmann,E. Kuns,A. Laasanen,N. Labanca,S. Lammel,J. Lamoureux, T. LeCompte,S. Leone, J. Lewis, P. Limon,M. Lindgren, T. Liss,N. Lockyer,C. Loomis,O. Long,M. Loreti,E. Low,J. Lu,D. Lucchesi,C. Luchini,P. Lukens, J. Lys,P. Maas, K. Maeshima,A. Maghakian, P. Maksimovic, M. Mangano,J. Mansour,M. Mariotti,J. Marriner, A. Martin,J. Matthews,R. Mattingly,P. McIntyre,P. Melese, A. Menzione,E. Meschi,G. Michail,S. Mikamo, M. Miller,R. Miller,T. Mimashi,S. Miscetti,M. Mishina,H. Mitsushio,S. Miyashita,Y. Morita, S. Moulding,J. Mueller, A. Mukherjee, T. Muller,P. Musgrave,L. Nakae, I. Nakano, C. Nelson,D. Neuberger, C. Newman-Holmes,L. Nodulman,S. Ogawa,S. Oh,K. Ohl,R. Oishi,T. Okusawa,C. Pagliarone, R. Paoletti,V. Papadimitriou,S. Pappas,S. Park,J. Patrick, G. Pauletta,M. Paulini,L. Pescara,M. Peters,T. Phillips,G. Piacentino,M. Pillai,R. Plunkett,L. Pondrom,N. Produit,J. Proudfoot,F. Ptohos,G. Punzi,K. Ragan,F. Rimondi, L. Ristori,M. Roach-Bellino,W. Robertson, T. Rodrigo,J. Romano,L. Rosenson, W. Sakumoto, D. Saltzberg, A. Sansoni,V. Scarpine,A. Schindler,P. Schlabach,E. Schmidt,M. Schmidt,O. Schneider,G. Sciacca, A. Scribano,S. Segler, S. Seidel, Y. Seiya,G. Sganos,A. Sgolacchia, M. Shapiro, N. Shaw,Q. Shen,P. Shepard, M. Shimojima, M. Shochet, J. Siegrist,A. Sill, P. Sinervo, P. Singh,J. Skarha,K. Sliwa,D. Smith,F. Snider,L. Song,T. Song, J. Spalding,L. Spiegel,P. Sphicas,L. Stanco, J. Steele,A. Stefanini,K. Strahl, J. Strait, D. Stuart,G. Sullivan, K. Sumorok,R. Swartz, Jr.,T. Takahashi,K. Takikawa,F. Tartarelli,W. Taylor,P. Teng,Y. Teramoto,S. Tether,D. Theriot,J. Thomas, T. Thomas,R. Thun,M. Timko,P. Tipton,A. Titov, S. Tkaczyk, K. Tollefson,A. Tollestrup,J. Tonnison,J. de Troconiz,J. Tseng,M. Turcotte,N. Turini, N. Uemura, F. Ukegawa,G. Unal,S. van den Brink,S. Vejcik III,R. Vidal,M. Vondracek, D. Vucinic,R. Wagner,N. Wainer,R. Walker, C. Wang,G. Wang, J. Wang,M. Wang,Q. Wang,A. Warburton, G. Watts,T. Watts,R. Webb,C. Wei, C. Wendt,H. Wenzel,W. Wester III,T. Westhusing, A. Wicklund, E. Wicklund,R. Wilkinson,H. Williams,P. Wilson,B. Winer,J. Wolinski,D. Wu,X. Wu,J. Wyss,A. Yagil, W. Yao,K. Yasuoka,Y. Ye,G. Yeh,P. Yeh,M. Yin, J. Yoh,C. Yosef,T. Yoshida,D. Yovanovitch, I. Yu,J. Yun, A. Zanetti,F. Zetti, L. Zhang,S. Zhang,W. Zhang,S. Zucchelli

PHYSICAL REVIEW LETTERS（1996）

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摘要

We have searched for the rare decay W-+/- --> pi(+/-) + gamma in 16.7 pb(-1) of data taken in proton-antiproton collisions at root s = 1.8 TeV with the CDF detector at Fermilab. We find one event consistent with subtraction, we find the ratio of partial widths to be Gamma(W-+/- --> pi(+/-) + gamma)/Gamma(W-+/- --> e(+/-) + nu) less than or equal to 2.0 X 10(-3) at the 95% confidence level.

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