Measurement of the $p\bar{p} \to W+b+X$ production cross section at $\sqrt{s}=1.96$ TeV

V M Abazov,A Kupco,R K Shivpuri,A V Kozelov,G Facini, E Camachoperez,M D Hildreth,Mark Hohlfeld,Y Enari, A Jonckheere,B C K Casey,G W Wilson,U Heintz,A Goussiou,M P Sanders,J D Hobbs,S Chevalierthery,V A Kuzmin,Darren Price,J Hays,L Zivkovic,M Cooke, S Greder,Richard J Van Kooten, E Chapon,C Royon,J P Negret,T G Zhao,A Juste,Y N Kharzheev,J Weichert,Arnd Meyer,B Hoeneisen,I Rippbaudot,V Hynek,N Khalatyan,G Landsberg, K Johns,S Uzunyan,Bannanje Sripath Acharya,Hengne Li, T Hebbeker,P Skubic,P L M Podestalerma,I Howley,G Alejandro Garciaguerra,Jan Stark,Sungwoong Cho,M W Gruenewald,P Neustroev,A Harel,R Hirosky,G Davies,Ashish Kumar,M Fortner,V L Malyshev, R Partridge,Alexey Popov,Phillipe Luc Gris,Zhenyu Ye, T Hoang,V N Evdokimov,J A Garciagonzalez,M C Cousinou,Harald Fox,M Naimuddin,K Yip,T R Wyatt,W Fisher,H Severini,C L Mcgivern,V V Lipaev,Liang Han,Heugene Fisk,A Melnitchouk,K Petridis,M Begalli,C Avila,V E Bazterra,J Ellison,L S Vertogradov,M Vesterinen, L Sonnenschein,P Lebrun,G Hesketh,K Tschanngrimm,Rdean Schamberger,J Osta,R Kehoe,J Martinezortega,J Orduna,Jiaming Yu,Kwok Ming Leo Chan,P Verdier,I Bertram,David G Savage,A Evdokimov,Y Xie,M S Rangel,V M Podstavkov,A Khanov,Qizhong Li,F Couderc,L V Dudko,J Snow,M Diesburg,D Denisov,A K Dubey,G Ginther,B Baldin,M A Pleier,A S Ito,K Harder,Bing Zhou,N Osman,Sijbrand Jan De Jong,R Lipton, M Prewitt,C Deterre,Eduard De La Cruzburelo,Sudeep Bhatia,D Smirnov,Savanna Shaw,S Kermiche,Jonathan Brown,Wanyu Ye,R Madar, V Shary,D Aaron M Dominguez,S P Denisov,R Demina,F Rizatdinova,Z Hubacek,A Y Verkheev,P C Bhat,F Fiedler, P Slattery,H Evans,C P Buszello, M Jaffre,S Burdin,A L Lyon,K J Smith,G Petrillo,Julie Hogan,A A Shchukin,R Beuselinck,J Clutter, W M Lee,P Svoisky,J Zennamo,A White,T Kurca,P Salcido,M Zielinski, M Rominsky,T Guillemin,V Simak,Arnab Pal,M Wobisch,J M Kohli,K Augsten,P Baringer,V Buescher,D Claes,K Ranjan,P N Ratoff,I Razumov,G Watts,S Snyder,M Mulhearn,R Brock,R Bernhard, A S Santos,W Geng,D Wicke,V V Tokmenin,A Sanchezhernandez,G Golovanov,R Ruchti,Minsoo Jeong,V Bunichev,Arnulf Quadt,Y Scheglov,B Penning,L Weltyrieger,A Grohsjean,C Schwanenberger,G Gutierrez,E Nagy,Willem M Van Leeuwen,H J Lubatti,Rafael Lopes De Sa,A P Heinson, A W Jung,V Parihar,Michael Hls Wang,Emily Johnson,S Blessing,J M Hauptman,C Hensel,Y A Yatsunenko, Ivan Herediade La Cruz,A Croc,D P Brown,F Filthaut,A Boehnlein,G Borissov,G Grenier,N Varelas,A Garciabellido,D Chakraborty,P D Grannis,M Narain,K Soustruznik,H Schellman,E Shabalina,Jeong Ku Lim,Yanwen Liu,Amitabha Das, G Alkhazov,N Parua,R Illingworth,Hang Yin,R Lunagarcia,M M Meijer,G D Alexeev, G Sajot,Todd Adams, P Vokac,A Alton,J F Grivaz,M Titov,D Boline,Jfrederick Bartlett,A Patwa,S B Beri,Breese Quinn,Y Ilchenko,S Desai,Sehwook Lee,M Corcoran,T Scanlon,S Atkins,D Zieminska, C E Gerber,D V Bandurin,T Nunnemann,Y Maravin, M Perfilov,Subhendu Chakrabarti,Marc Buehler,S K Park,Marvin Johnson,E E Boos,E Kajfasz,Hlee Sawyer,Dikai Li,B Tuchming,J Kraus,S Cihangir,B Choudhary,I A Vasilyev,V Bhatnagar,Junjie Zhu,Sudhir Malik,Lei Feng,M Adams,D R Wood,Y Gershtein,Huanzhao Liu,Vdaniel Elvira,Siqi Yang,Pengfei Ding,G Blazey, A Bross,N K Mondal,A Dyshkant,Anthony Ross,D Gerbaudo,S Lammers,T Head,Sunanda Banerjee, R Jesik,N Parashar,M Wayne,H Castillavaldez,S Caughron,L Bagby,P Renkel,I Kiselevich,K Herner,A Duperrin,H A Neal,Jeremie Lellouch,S Dutt,Daniel Duggan,K Bloom,A Jayasinghe,R Yamada,Guo Chen,L Bellantoni, J Sekaric,P Rubinov,W E Cooper,S Gruenendahl,U Bassler,Liang Li,A Lobodenko,D Karmanov,M Strauss,I Katsanos, A Brandt,Frederique Badaud,D Vilanova,Jianming Qian,M Verzocchi,Sungwoo Youn,R Mccarthy,A Kharchilava,M Merkin,P Gutierrez,A Bean,Oleg Brandt,G R Snow,A Chandra,Xiaowen Lei,M Padilla,S Soldnerrembold,L Uvarov,T Ferbel,D A Stoyanova,J Linnemann,Yuntse Tsai,S Fuess,T Yasuda,F Deliot,Arthur Ka Maciel,S Jabeen,Reinhild Yvonne Fatima Peters,E Barberis,Hthomas Diehl,J Haley,M Besancon,Pascal Gay,V Gavrilov,K Devaughan,P A Kasper,G Bernardi,H D Wahl,Peng Jiang,C Tully, M Eads,E W Varnes,P Jonsson,S Uvarov,D Menezes,D Lincoln,Suyong Choi,A Askew,Xuebing Bu,D Edmunds, P Petroff,Louise Suter,D Hedin,B Abbott,D Tsybychev,D Cutts, N Prokopenko,F Miconi,R Schwienhorst,R Maganavillalba,M R J Williams,Hatim Hegab,Hyunsu Lee,P G Mercadante,J Meyer,I Iashvili,M Lokajicek,Jadwiga Warchol,Jyoti Joshi,R Nayyar,H Greenlee, H T Nguyen

PHYSICS LETTERS B（2013）

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摘要

We present a measurement of the cross section for W boson production in association with at least one b-quark jet in proton-antiproton collisions. The measurement is made using data corresponding to an integrated luminosity of 6.1 fb(-1) recorded with the DO detector at the Fermilab Tevatron p (p) over bar Collider at root s = 1.96 TeV. We measure an inclusive cross section of sigma(W(-> mu nu) + b + X) = 1.04 +/- 0.05 (stat.) +/- 0.12 (syst.) pb and sigma(W (-> e nu) + b + X) = 1.00 +/- 0.04 (stat.) +/- 0.12 (syst.) pb in the phase space defined by p(T)(nu) > 25 GeV, p(T)(b-jet) > 20 GeV, vertical bar eta(b-jet)vertical bar < 1.1, and a muon (electron) with p(T)(l) > 20 GeV and vertical bar eta(mu)vertical bar < 1.7 (vertical bar eta(e)vertical bar < 1.1 or 1.5 < vertical bar eta(e)vertical bar < 2.5). The combined result per lepton family is sigma(W(-> l nu) + b + X) = 1.05 +/- 0.12 (stat. + syst.) pb for vertical bar eta(l)vertical bar < 1.7. The results are in agreement with predictions from next-to-leading order QCD calculations using MCFM, sigma (W + b) B(W -> l nu) = 1.34(-0.34)(+0.41) (syst.) pb, and also with predictions from the SHERPA and MADGRAPH Monte Carlo event generators. Published by Elsevier B.V.

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