Measurement of the W-->taunu production cross section in pp collisions at square root s=1.8 TeV. B Abbott , M Abolins , V Abramov , B S Acharya , D L Adams , M Adams , S Ahn , V Akimov , G A Alves , N Amos , E W Anderson , M M Baarmand , V V Babintsev , L Babukhadia , A Baden , B Baldin , S Banerjee , J Bantly , E Barberis , P Baringer , J F Bartlett , U Bassler , A Belyaev , S B Beri , G Bernardi , I Bertram , V A Bezzubov , P C Bhat , V Bhatnagar , M Bhattacharjee , G Blazey , S Blessing , A Boehnlein , N I Bojko , F Borcherding , A Brandt , R Breedon , G Briskin , R Brock , G Brooijmans , A Bross , D Buchholz , V Buescher , V S Burtovoi , J M Butler , W Carvalho , D Casey , Z Casilum , H Castilla-Valdez , D Chakraborty , K M Chan , S V Chekulaev , W Chen , D K Cho , S Choi , S Chopra , B C Choudhary , J H Christenson , M Chung , D Claes , A R Clark , W G Cobau , J Cochran , L Coney , B Connolly , W E Cooper , D Coppage , D Cullen-Vidal , M A Cummings , D Cutts , O I Dahl , K Davis , K De , K Del Signore , M Demarteau , D Denisov , S P Denisov , H T Diehl , M Diesburg , G Di Loreto , P Draper , Y Ducros , L V Dudko , S R Dugad , A Dyshkant , D Edmunds , J Ellison , V D Elvira , R Engelmann , S Eno , G Eppley , P Ermolov , O V Eroshin , J Estrada , H Evans , V N Evdokimov , T Fahland , S Feher , D Fein , T Ferbel , H E Fisk , Y Fisyak , E Flattum , F Fleuret , M Fortner , K C Frame , S Fuess , E Gallas , A N Galyaev , P Gartung , V Gavrilov , R J Genik , K Genser , C E Gerber , Y Gershtein , B Gibbard , R Gilmartin , G Ginther , B Gobbi , B Gómez , G Gómez , P I Goncharov , J L González Solís , H Gordon , L T Goss , K Gounder , A Goussiou , N Graf , P D Grannis , D R Green , J A Green , H Greenlee , S Grinstein , P Grudberg , S Grünendahl , G Guglielmo , A Gupta , S N Gurzhiev , G Gutierrez , P Gutierrez , N J Hadley , H Haggerty , S Hagopian , V Hagopian , K S Hahn , R E Hall , P Hanlet , S Hansen , J M Hauptman , C Hays , C Hebert , D Hedin , A P Heinson , U Heintz , T Heuring , R Hirosky , J D Hobbs , B Hoeneisen , J S Hoftun , F Hsieh , A S Ito , S A Jerger , R Jesik , T Joffe-Minor , K Johns , M Johnson , A Jonckheere , M Jones , H Jöstlein , S Y Jun , S Kahn , E Kajfasz , D Karmanov , D Karmgard , R Kehoe , S K Kim , B Klima , C Klopfenstein , B Knuteson , W Ko , J M Kohli , D Koltick , A V Kostritskiy , J Kotcher , A V Kotwal , A V Kozelov , E A Kozlovsky , J Krane , M R Krishnaswamy , S Krzywdzinski , M Kubantsev , S Kuleshov , Y Kulik , S Kunori , G Landsberg , A Leflat , F Lehner , H Li , J Li , Q Z Li , J G Lima , D Lincoln , S L Linn , J Linnemann , R Lipton , J G Lu , A Lucotte , L Leuking , C Lundstedt , A K Maciel , R J Madaras , V Manankov , S Mani , H S Mao , R Markeloff , T Marshall , M I Martin , R D Martin , K M Mauritz , B May , A A Mayorov , R McCarthy , J McDonald , T McKibben , T McMahon , H L Melanson , M Merkin , K W Merritt , C Miao , H Miettinen , A Mincer , C S Mishra , N Mokhov , N K Mondal , H E Montgomery , M Mostafa , H da Motta , E Nagy , F Nang , M Narain , V S Narasimham , H A Neal , J P 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 G Pope , E Popkov , H B Prosper , S Protopopescu , J Qian , P Z Quintas , R Raja , S Rajagopalan , N W Reay , S Reucroft , M Rijssenbeek , T Rockwell , M Roco , P Rubinov , R Ruchti , J Rutherfoord , A Santoro , L Sawyer , R D Schamberger , H Schellman , A Schwartzman , J Sculli , N Sen , E Shabalina , H C Shankar , R K Shivpuri , D Shpakov , M Shupe , R A Sidwell , H Singh , J B Singh , V Sirotenko , P Slattery , E Smith , R P Smith , R Snihur , G R Snow , J Snow , S Snyder , J Solomon , X F Song , V Sorín , M Sosebee , N Sotnikova , M Souza , N R Stanton , G Steinbrück , R W Stephens , M L Stevenson , F Stichelbaut , D Stoker , V Stolin , D A Stoyanova , M Strauss , K Streets , M Strovink , L Stutte , A Sznajder , J Tarazi , M Tartaglia , T L Thomas , J Thompson , D Toback , T G Trippe , A S Turcot , P M Tuts , P van Gemmeren , V Vaniev , N Varelas , A A Volkov , A P Vorobiev , H D Wahl , J Warchol , G Watts , M Wayne , H Weerts , A White , J T White , J A Wightman , S Willis , S J Wimpenny , J V Wirjawan , J Womersley , D R Wood , R Yamada , P Yamin , T Yasuda , K Yip , S Youssef , J Yu , Y Yu , M Zanabria , H Zheng , Z Zhou , Z H Zhu , M Zielinski , D Zieminska , A Zieminski , V Zutshi , E G Zverev , A Zylberstejn Physical review letters（2000）
摘要
We report on a measurement of sigma(pp-->W+X)B(W-->taunu) in pp collisions at sqrt[s]=1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrated luminosity (lum) of 18 pb-1 of data collected with the D0 detector during 1994-1995. We find that sigma(pp-->W+X)B(W-->taunu)=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, gWtau/gWe, be unity. We find gWtau/gWe=0.980+/-0.031, in agreement with lepton universality.
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