Measurement of the W + b-jet and W + c-jet differential production cross sections in [formula omitted] collisions at [formula omitted

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

doi:10.1016/j.physletb.2015.02.012

Abstract

We present a measurement of the cross sections for the associated production of a W boson with at least one heavy quark jet, b or c, in proton–antiproton collisions. Data corresponding to an integrated luminosity of 8.7 fb−1 recorded with the D0 detector at the Fermilab Tevatron pp¯ Collider at s=1.96 TeV are used to measure the cross sections differentially as a function of the jet transverse momenta in the range 20 to 150 GeV. These results are compared to calculations of perturbative QCD theory as well as predictions from Monte Carlo generators.

Highlights

We present a measurement of the cross sections for the associated production of a W boson with at least one heavy quark jet, b or c, in proton–antiproton luminosity of 8.7 fb−1 recorded with the D0 detector collisions
The dominant processes contributing to W + c-jet production are qg → W c and qq → W g followed by g → cc
The production cross section for the first process is sensitive to the quark and gluon parton density functions (PDFs)

Summary

Introduction

We present a measurement of the cross sections for the associated production of a W boson with at least one heavy quark jet, b or c, in proton–antiproton luminosity of 8.7 fb−1 recorded with the D0 detector collisions. 1.96 TeV are used to measure the cross sections differentially as a function of the jet transverse momenta in the range 20 to 150 GeV. Measurement of the p p → W + c-jet differential cross section should provide information about the s-quark PDF.

Results

Conclusion