Measurement of the [formula omitted] production cross section at [formula omitted

V M Abazov ,A Melnitchouk,D Denisov,G Ginther,G Sajot,M Hohlfeld,J Martínez-Ortega,M Vesterinen,A Croc,I Ripp-Baudot,D Boline,J Weichert,J Hays,S Chakrabarti,T Yasuda,I Katsanos,L Welty-Rieger,P Renkel,D Hedin,V Parihar,J Clutter,P Svoisky,E Johnson,M Padilla,K Herner,J Osta,W Geng,D Vilanova,F Badaud,T Hoang,A Patwa,U Bassler,G Alkhazov,J Ellison,J Zennamo,T Head,S Yang,D Karmanov,M Eads,K Devaughan,J Orduna,T Nunnemann,R Magaña-Villalba,S Cihangir,R Illingworth,P Verdier,M Fortner,E Kajfasz,R Madar,S Greder,B Penning,S Blessing,M Merkin,A Evdokimov,S Banerjee,G Grenier,A Pal,J Snow,A Alton,A Lobodenko,S Kermiche,K Yip,R Bernhard,Y Peters,E De La Cruz-Burelo,M Prewitt,J Lellouch,F Miconi,A Jayasinghe,I Howley,V Shary,I Heredia-De La Cruz,I Razumov,R Jesik,G Golovanov,N Osman,W Ye,S Uvarov,S Fuess,A Bross,M Naimuddin,L Bellantoni,G Savage,D Chakraborty,V Bunichev,M Jaffré,S Söldner-Rembold,N Parua,S Chevalier-Théry,R Yamada,S Uzunyan,R Van Kooten,Y Ilchenko,P Lebrun,V Hynek,A Jonckheere,B Tuchming,B Baldin,C Schwanenberger,Y Scheglov,D Wicke,P Salcido,B Quinn,R Beuselinck,S Atkins,A Boehnlein,A Chandra,N Khalatyan,P Skubic,M Rominsky,M Cooke,H Schellman,T Scanlon,B Hoeneisen,J Warchol,L Bagby,H Greenlee,S Caughron,J Sekaric,D Edmunds,E Camacho-Pérez,K Tschann-Grimm,P Neustroev,R Partridge,H Hegab,M Diesburg,I Kiselevich,P Rubinov,D Smirnov,M Buehler,D Menezes,S Jabeen,K Harder,J K Kraus ,M Wayne,T Adams,S P Denisov ,M C Cousinou ,O Brandt,T Zhao,G Borissov,Y Maravin,H Severini,J Meyer,K Chan ,A Duperrin,Ph Gris,T Hebbeker,L Li,A Dominguez,G A García-Guerra ,É Chapon ,Y Liu,J Yu ,W M Van Leeuwen ,L Dudko ,A V Kozelov ,A Dyshkant,H T Diehl ,S Burdin,A García-Bellido ,S Malik,P N Ratoff ,Sung Wook Choi ,A Quadt,A S Ito ,S Bhatia,K Smith ,M P Sanders ,J Haley,S W Lee ,D Wood ,R D Schamberger ,C L Mcgivern ,H Liu,R K Shivpuri ,P L.m Podesta-Lerma ,E Nagy,H Nguyen ,S M Shaw ,A Sánchez-Hernández,H Fox,R Hirosky,H Evans,G Landsberg,S J De Jong ,R Démina ,V V Tokmenin ,Y Xie,V Šimák ,A Kupčo ,G W Wilson ,H D Wahl ,A Ross,F Couderc,X B Bu ,A Grohsjean,N Prokopenko,B Zhou,Y A Yatsunenko ,U Heintz,X Lei,K Ranjan,G Blazey,J Qian,P Slattery,C Ávila ,C Tully,H Yin,Michael Wang ,S Grünendahl,W E Cooper ,D Ćutts ,P Vokáč ,M Perfilov,P Baringer,S Desai,Y N Kharzheev ,Arindam Das ,D Ziemińska ,W M Lee ,V V Lipaev ,Z Ye,L S Vertogradov ,A Dubey,Q Z Li ,J Joshi,C E Gerber ,A Bean,A K.a Maciel ,G Gutiérrez ,S B Beri ,Y Gershtein,A Brandt,A Popov ,P Jönsson ,K Augsten,M Mulhearn,M Narain,P Gutiérrez ,D Brown,M Johnson,N K Mondal ,V Buescher,K Petridis,C P Buszello ,H E Fisk ,J Hobbs ,M M Meijer ,B S Acharya ,C Royon,D Li,R Kehoe,D Lincoln,E Barberis,M Lokajı́ček ,M Zieliński ,E W Varnes ,G Petrillo,A Askew,A White,P F Ding ,V L Malyshev ,D V Bandurin ,D Price,L Sawyer,Andreas Werner Jung ,V Bhatnagar,K Soustružnı́k ,A G Goussiou ,M Grünewald ,V D Elvira ,H S Lee ,A Kharchilava,T Kurča,R Luna-García ,F Filthaut,A Harel,M Titov,C Deterre,S Snyder,M Strauss,S Dutt,R Schwienhorst,Han Liu ,D A Stoyanova ,F Rizatdinova,M A Pleier ,R Nayyar,H Li,V M Podstavkov ,Y T Tsai ,W C Fisher ,Z Hubáček ,K A Johns ,B C Choudhary ,P Pétroff,M R Adams ,M Verzocchi,T R Wyatt ,V N Evdokimov ,T Ferbel,G Watts,G Davies,G Bernardi,M Corcoran,N Varelas,C Hensel,R L Mccarthy ,E Shabalina,A Juste Rozas ,P D Grannis ,D R Claes ,Jaehoon Lim ,A P Heinson ,G Chen,R Lipton,Feng Liu ,J F Bartlett ,G D Alexeev ,P C Bhat ,I Iashvili,T Guillemin,V Gavrilov,A Khanov,J Linnemann,M Begalli,L Suter,J Brown,I A Bertram ,R Brock,D Duggan,D Gerbaudo,Peng Jiang ,J.-F Grivaz,G G Hesketh ,M S Jeong ,M Hildreth ,K Bloom,H A Neal ,H Castilla‐Valdez ,S W Cho ,F Déliot,B C.k Casey ,G Facini,Andreas Bernhard Meyer ,J P Negret ,D Tsybychev,J Stark,A L Lyon ,Mark Richard James Williams ,Arun Kumar ,M S Rangel ,J Zhu,A A Shchukin ,J M Kohli ,A S Santos ,M Besançon,S K Park ,H J Lubatti ,E Boos ,A Y Verkheev ,F Fiedler,M Wobisch,S W Youn ,B Abbott,I A Vasilyev ,V E Bazterra ,V A Kuzmin ,L Sonnenschein,J M Hogan ,S Lammers,G R Snow ,R Ruchti,R Lopes De ,Y Enari,P A Kasper ,J M Hauptman ,N Parashar,J A García-González ,P G Mercadante ,L Uvarov,L Živković

doi:10.1016/j.physletb.2012.12.044

Abstract

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 D0 detector at the Fermilab Tevatron pp¯ Collider at s=1.96 TeV. We measure an inclusive cross section of σ(W(→μν)+b+X)=1.04±0.05(stat.)±0.12(syst.) pb and σ(W(→eν)+b+X)=1.00±0.04(stat.)±0.12(syst.) pb in the phase space defined by pTν>25 GeV, pTb-jet>20 GeV, |ηb-jet|<1.1, and a muon (electron) with pTℓ>20 GeV and |ημ|<1.7 (|ηe|<1.1 or 1.5<|ηe|<2.5). The combined result per lepton family is σ(W(→ℓν)+b+X)=1.05±0.12(stat.+syst.) pb for |ηℓ|<1.7. The results are in agreement with predictions from next-to-leading order QCD calculations using mcfm, σ(W+b)⋅B(W→ℓν)=1.34−0.34+0.41(syst.) pb, and also with predictions from the sherpa and madgraph Monte Carlo event generators.

Highlights

√ Measurement of the p p → W + b + X production cross section at s = 1.96 TeV
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
In this Letter we describe a measurement of the cross section for W boson production in association with b-quark jets in p pinteractions, where a W boson is identified via its electronic or muonic decay modes

Summary

Introduction

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 of the production cross section of a W boson in association with a b-quark jet provides a stringent test of quantum chromodynamics (QCD).

Results

Conclusion