Measurement Of The W ->Tau Nu Production Cross Section In P(P)Over-Bar Collisions At Root S=1.8 Tev

B. Abbott,M. Abolins,V. Abramov,B. Acharya,D. Adams,M. Adams,S. Ahn,V. Akimov,G. Alves,N. Amos,E. Anderson,M. Baarmand,V. Babintsev,L. Babukhadia,A. Baden,B. Baldin,S. Banerjee,J. Bantly,E. Barberis,P. Baringer,J. Bartlett,U. Bassler,A. Belyaev,S. Beri,G. Bernardi,I. Bertram,V. Bezzubov,P. Bhat,V. Bhatnagar,M. Bhattacharjee,G. Blazey,S. Blessing,A. Boehnlein,N. Bojko,F. Borcherding,A. Brandt,R. Breedon,G. Briskin,R. Brock,G. Brooijmans,A. Bross,D. Buchholz,V. Buescher,V. Burtovoi,J. Butler,W. Carvalho,D. Casey,Z. Casilum,H. Castilla-Valdez,D. Chakraborty,K. Chan,S. Chekulaev,W. Chen,D. Cho,S. Choi,S. Chopra,B. Choudhary,J. Christenson,M. Chung,D. Claes,A. Clark,W. Cobau,J. Cochran,L. Coney,B. Connolly,W. Cooper,D. Coppage,D. Cullen-Vidal,M. Cummings,D. Cutts,O. Dahl,K. Davis,K. De,K. Del Signore,M. Demarteau,D. Denisov,S. Denisov,H. Diehl,M. Diesburg,G. Di Loreto,P. Draper,Y. Ducros,L. Dudko,S. Dugad,A. Dyshkant,D. Edmunds,J. Ellison,V. Elvira,R. Engelmann,S. Eno,G. Eppley,P. Ermolov,O. Eroshin,J. Estrada,H. Evans,V. Evdokimov,T. Fahland,S. Feher,D. Fein,T. Ferbel,H. Fisk,Y. Fisyak,E. Flattum,F. Fleuret,M. Fortner,K. Frame,S. Fuess,E. Gallas,A. Galyaev,P. Gartung,V. Gavrilov,R. Genik,K. Genser,C. Gerber,Y. Gershtein,B. Gibbard,R. Gilmartin,G. Ginther,B. Gobbi,B. Gómez,G. Gómez,P. Goncharov,J. González Solís,H. Gordon,L. Goss,K. Gounder,A. Goussiou,N. Graf,P. Grannis,D. Green,J. Green,H. Greenlee,S. Grinstein,P. Grudberg,S. Grünendahl,G. Guglielmo,A. Gupta,S. Gurzhiev,G. Gutierrez,P. Gutierrez,N. Hadley,H. Haggerty,S. Hagopian,V. Hagopian,K. Hahn,R. Hall,P. Hanlet,S. Hansen,J. Hauptman,C. Hays,C. Hebert,D. Hedin,A. Heinson,U. Heintz,T. Heuring,R. Hirosky,J. Hobbs,B. Hoeneisen,J. Hoftun,F. Hsieh,A. Ito,S. Jerger,R. Jesik,T. Joffe-Minor,K. Johns,M. Johnson,A. Jonckheere,M. Jones,H. Jöstlein,S. Jun,S. Kahn,E. Kajfasz,D. Karmanov,D. Karmgard,R. Kehoe,S. Kim,B. Klima,C. Klopfenstein,B. Knuteson,W. Ko,J. Kohli,D. Koltick,A. Kostritskiy,J. Kotcher,A. Kotwal,A. Kozelov,E. Kozlovsky,J. Krane,M. Krishnaswamy,S. Krzywdzinski,M. Kubantsev,S. Kuleshov,Y. Kulik,S. Kunori,G. Landsberg,A. Leflat,F. Lehner,H. Li,J. Li,Q. Li,J. Lima,D. Lincoln,S. Linn,J. Linnemann,R. Lipton,J. Lu,A. Lucotte,L. Lueking,C. Lundstedt,A. Maciel,R. Madaras,V. Manankov,S. Mani,H. Mao,R. Markeloff,T. Marshall,M. Martin,R. Martin,K. Mauritz,B. May,A. Mayorov,R. McCarthy,J. McDonald,T. McKibben,T. McMahon,H. Melanson,M. Merkin,K. Merritt,C. Miao,H. Miettinen,A. Mincer,C. Mishra,N. Mokhov,N. Mondal,H. Montgomery,M. Mostafa,H. da Motta,E. Nagy,F. Nang,M. Narain,V. Narasimham,H. Neal,J. Negret,S. Negroni,D. Norman,L. Oesch,V. Oguri,B. Olivier,N. Oshima,D. Owen,P. Padley,A. Para,N. Parashar,R. Partridge,N. Parua,M. Paterno,A. Patwa,B. Pawlik,J. Perkins,M. Peters,R. Piegaia,H. Piekarz,Y. Pischalnikov,B. Pope,E. Popkov,H. Prosper,S. Protopopescu,J. Qian,P. Quintas,R. Raja,S. Rajagopalan,N. Reay,S. Reucroft,M. Rijssenbeek,T. Rockwell,M. Roco,P. Rubinov,R. Ruchti,J. Rutherfoord,A. Santoro,L. Sawyer,R. Schamberger,H. Schellman,A. Schwartzman,J. Sculli,N. Sen,E. Shabalina,H. Shankar,R. Shivpuri,D. Shpakov,M. Shupe,R. Sidwell,H. Singh,J. Singh,V. Sirotenko,P. Slattery,E. Smith,R. Smith,R. Snihur,G. Snow,J. Snow,S. Snyder,J. Solomon,X. Song,V. Sorín,M. Sosebee,N. Sotnikova,M. Souza,N. Stanton,G. Steinbrück,R. Stephens,M. Stevenson,F. Stichelbaut,D. Stoker,V. Stolin,D. Stoyanova,M. Strauss,K. Streets,M. Strovink,L. Stutte,A. Sznajder,J. Tarazi,M. Tartaglia,T. Thomas,J. Thompson,D. Toback,T. Trippe,A. Turcot,P. Tuts,P. van Gemmeren,V. Vaniev,N. Varelas,A. Volkov,A. Vorobiev,H. Wahl,J. Warchol,G. Watts,M. Wayne,H. Weerts,A. White,J. White,J. Wightman,S. Willis,S Wimpenny,J. Wirjawan,J. Womersley,D. Wood,R. Yamada,P. Yamin,T. Yasuda,K. Yip,S. Youssef,J. Yu,Y. Yu,M. Zanabria,H. Zheng,Z. Zhou,Z. Zhu,M. Zielinski,D. Zieminska,A. Zieminski,V. Zutshi,E. Zverev,A. Zylberstejn

PHYSICAL REVIEW LETTERS（2000）

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Abstract

of data collected with the DO detector during 1993-1995. We find that a(p (p) over bar --> W + X)B(W --> tau nu) = 2.22 +/- 0.09 (stat) +/- 0.10 (syst) +/- 0.10 (lum) nb. Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the W boson, g(T)(W)/g(e)(W), be unity. We find g(T)(W)/g(e)(W) = 0.980 +/- 0.031, in agreement with lepton universality.

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Key words

mathvariant=italic>w</mmlmi><mmlmi,the<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml,mathvariant=italic>ν</mmlmi></mmlmath>production cross section

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