Direct measurement of theWboson decay width

V M Abazov,M Abolins,J M Heinmiller,P Yamin,B Knuteson,L S Vertogradov,F Canelli,N A Naumann,B G Pope,D Denisov,J Ellison,A Patwa,K W Merritt,D Edmunds,P M Tuts,W Kahl,J H Christenson,A Boehnlein,G Briskin,A Zylberstejn,J F Bartlett,Y Kulik,R J Madaras,T G Trippe,A Bross,R A Sidwell,Y Arnoud,R J Genik,E Popkov,J P Negret,P D Grannis,D Karmanov,V A Bezzubov,S Fu,C Lundstedt,B Hoeneisen,D Coppage,L Coney,H Weerts,A Abdesselam,V Oguri,R Piegaia,S Doulas,N R Stanton,M Roco,P A Rapidis,M Zanabria,P Krivkova,K Genser,H Greenlee,M Merkin,A P Heinson,Y Fisyak,K C Frame,M Jaffré,J Kotcher,A V Kozelov,R D Schamberger,P Demine,R Partridge,F Villeneuve-Seguier,T Fahland,N Graf,D Fein,R Yamada,S N Gurzhiev,S Tentindo-Repond,M Paterno,J Barreto,B Baldin,H Haggerty,V Vaniev,H T Diehl,B Connolly,L Groer,M Demarteau,A S Turcot,M R Krishnaswamy,A Alton,O V Eroshin,P I Goncharov,A Leflat,D Buchholz,J L González Solís,B Gómez,H Schellman,R Jesik,K Yip,M Chung,D Shpakov,M Buehler,R E Hall,H A Neal,R Gilmartin,S Fuess,R Beuselinck,L T Goss,D Chakraborty,N W Reay,M Strovink,M Fortner,F Borcherding,D A Stoyanova,J T Eltzroth,N Sotnikova,J M Hauptman,P Padley,C Miao,N Oshima,G D Alexeev,G Sajot,Y Ducros,G Eppley,M Sosebee,U Bassler,D A Wijngaarden,V Zutshi,K Gounder,R Engelmann,T Rockwell,M Bhattacharjee,P Rubinov,A V Kostritskiy,E A Kozlovsky,H D Wahl,O Peters,A Jonckheere,P W Balm,T C Bacon,S P Denisov,L Stutte,T Nunnemann,E W Anderson,R Illingworth,H E Montgomery,S Banerjee,Y Huang,A Baden,R K Shivpuri,A P Vorobiev,D K Cho,J Warchol,H Jöstlein,W E Cooper,H E Fisk,J Solomon,S Blessing,E G Zverev,J Snow,D Hedin,M Diesburg,F Nang,V Sirotenko,L Lueking,J Womersley,V Manankov,H L Melanson,R Van Kooten,A Besson,E Kajfasz,L Babukhadia,E Flattum,A S Ito,S Reucroft,K M Chan,D Mihalcea,K Bos,D Bauer,T Yasuda,S Chopra,N Parua,J M Kohli,N I Bojko,B Pawlik,Z Casilum,N K Mondal,A N Galyaev,B Kothari,Y A Yatsunenko,G Ginther,S Willis,S Youssef,V S Narasimham,T Marshall,S Dugad ,H Singh,V Bhatnagar,R Breedon,M Hildreth ,В Е Кузнецов ,G R Snow,C Leggett,F Rizatdinova,P Baringer,S B Beri,G Watts,N J Hadley,C S Mishra,A Kupčo ,D C O’neil ,J Linnemann,A Schwartzman,T Ferbel,M M Baarmand,S Duensing,V L Malyshev,C Royon,M A.c Cummings ,Q Xu,S Kuleshov,C E Gerber,R Brock,H Da Motta,M Kubantsev,R P Smith,V D Elvira,H Prosper ,S Kahn,C Luo,H S Mao,M Souza,L Sawyer,F Fleuret,W Carvalho,Y Gershtein,A Volkov ,M Talby,A Brandt,R Raja,D P Stoker ,Y X Song ,B Klima,A G Goussiou ,J Yu,A Duperrin,I A Bertram ,А Калинин ,Z D Greenwood,A Gupta,В С Буртовой ,V Hagopian,A R Clark,F Filthaut,N Varelas,N Mokhov,J Krane,A Bean,S Hagopian,R L Mccarthy ,R Lipton,T Adams ,M Narain,P C Bhat,R W Moore,J Hobbs ,A Ziemiński ,G Brooijmans,S Hansen,M Wayne,A Stone,Z Zhou,M Zieliński ,S Ahmed ,G A Davis,R Snihur,A White,G Landsberg,H Wang,A Nomerotski,Z Wang ,F Blekman,T R Mcmahon ,D Ziemińska ,R W Stephens,D Lincoln,E Nagy,G Gutiérrez ,E Shabalina,E Smith,G Steinbrück,V Šimák ,V Sorı́n ,E Ramberg,K De,J P Rutherfoord ,A Khanov,D Whiteson,A Dyshkant,G A Alves,C P Hays ,M Gao,L Duflot,M A Shupe ,H A Gordon ,S M Tripathi,P Slattery,H Fox,M Rijssenbeek,S Grünendahl,J T White,T Bose,M Strang ,X Zhang,K Soustružnı́k ,M Przybycién ,W Ko,A Kharchilava,B Zhou,I Iashvili,G Bernardi,D Ćutts ,N Parashar,W M Lee,J Estrada,J Qian,R Hirosky,J G.r Lima ,Hua Zheng ,P Ermolov,M Martin ,V Abramov,H Evans,S K Kim,S Protopopescu,B S Acharya,W Taylor,A A Mayorov,S Wimpenny ,M R Adams ,S J De Jong,S Eno,A Juste Rozas ,R Ruchti,S Linn ,A K.a Maciel ,M Begel,U Heintz,G Blazey,S Kunori,V Gavrilov,Y D Mutaf ,C Leonidopoulos,P Gutiérrez ,S Choi,F Beaudette,J M Butler,L Dudko ,T Bolton ,A Lucotte,B Olivier,A Santoro,S Desai,Q Z Li,R Kehoe,D Casey,J A Green,E J Gallas ,Б М Сабиров ,S Grinstein,F Lehner,A Kotwal ,P Pétroff,N Sen,E Barberis,J Li,D Wood ,M Johnson,R Démina ,A Sznajder,S Krzywdziński ,V Babintsev ,V Buescher,H Castilla‐Valdez ,M Mostafa,В Н Евдокимов ,V Stolin,Pan Lu ,Κ Παπαγεωργίου ,M Ridel,M Strauss,S Snyder,Daniel John Karmgard ,D R Claes ,S Cŕéṕe-Renaudin ,S Rajagopalan,B Abbott,A Belyaev,H Miettinen,K A Johns ,C Ávila ,C Hébert ,S V Chekulaev,Sa Jain

doi:10.1103/physrevd.66.032008

Abstract

Based on 85 pb$^{-1}$ data of \ppbar collisions at $\sqrt{s}=1.8$ \tev\ collected using the D{\O}detector at Fermilab during the 1994-1995 run of the Tevatron, we present a direct measurement of the total decay width of the \wb\ boson, $\Gamma_W$. The width is determined from the transverse mass spectrum in the $W \to e+\nu_e$ decay channel and found to be $\Gamma_W = 2.23^{+ 0.15}_{- 0.14}$(stat.)$\pm 0.10$(syst.)GeV, consistent with the expectation from the standard model.

Full Text