Measurement of beauty production in DIS and extraction at ZEUS

H Abramowicz,G Marini,A Lee,G Barbagli,D Hochman,S Bhadra,E Gallo,S Magill,R Mankel,U Karshon,D Lontkovskyi,C Zhou,C Glasman,R K Dementiev,Z Zulkapli,J Grebenyuk,I O Skillicorn,O Gogota,K Borras,M Zolko,K Piotrzkowski,Ie Korol,A Keramidas,M Schioppa,A Raval,S Shimizu,P Stopa,M Turcato,F Corriveau,F Januschek,P Kulinski,T Y Ling,H Tiecke,J M Butterworth,M I Ferrero,J J Whitmore,I Rubinsky,D Bartsch,B B Levchenko,I Abt,Y Yamazaki,J De Favereau,M Kuze,M Wing,A Stern,G Grzelak,A Zichichi,A Longhin,U Kötz,S Fazio,T Namsoo,L Cifarelli,V Sosnovtsev,M Bindi,M Kaur,E Koffeman,M Adamus,R Hori,B Löhr,F Barreiro,O Bachynska,E Paul,A Caldwell,N S Pokrovskiy,A G Yagües-Molina,B Kahle,R Aggarwal,V Schönberg,L Suszycki,K Oliver,G Wolf,J Terrón,D Szuba,G Bari,H Perrey,B A Dolgoshein,E Lobodzinska,O Volynets,J Malka,O Zenaiev,D Bot,U Samson,A Nigro,J Schwartz,J Ferrando,P Göttlicher,Z Ren,A Garfagnini,M Lisovyi,H Wolfe,G Bruni,S Kitamura,B Pawlik,M Przybycień,G Grigorescu,Y Iga,U Klein,A E Nuncio-Quiroz,J Figiel,D Dobur,R Yoshida,J Maeda,G Iacobucci,V A Kuzmin,A Polini,S Miglioranzi,R Hamatsu,A Eskreys,W H Smith,R Walczak,J M Pawlak,M Capua,B Foster,T Kanno,W Hain,R Ingbir,G Hartner,V Viazlo,M Ishitsuka,V Libov,A Levy,G Susinno,J Szuba,T Theedt,Y Eisenberg,T Schörner-Sadenius,A F Żarnecki,R Nania,A Mastroberardino,O Kuprash,T Tsurugai,C Gwenlan,S Suchkov,L Bellagamba,M Borodin,J Sztuk,E Lohrmann,A Pellegrino,J Behr,U Behrens,Y Aushev,C Blohm,I.-A Melzer-Pellmann,D Notz,R Brugnera,J D Morris,A Geiser,K Papageorgiu,D Gladkov,P G Pelfer,M Ruspa,J Tomaszewska,M Vázquez,T P Stewart,E Hilger,J Repond,W Słomiński,E Tassi,J F Martin,A N Barakbaev,A Galas,B Bylsma,D Boscherini,T Haas,V Aushev,P Łużniak,S Limentani,B Brzozowska,T Bołd,F Karstens,A Contin,R Sacchi,O Behnke,C Youngman,N Zhmak,K Horton,D Nicholass,M Forrest,T Matsumoto,F Cindolo,B Musgrave,V Monaco,A Parenti,A Stifutkin,A Bertolin,M Wlasenko,V Sola,D H Saxon,N Okazaki,S Schlenstedt,M Corradi,R Carlin,G Sartorelli,T W Jones,A T Doyle,T Tymieniecka,M Derrick,L Wiggers,E Brownson,D Kisielewska,M Basile,M Costa,A Hüttmann,A Bamberger,I Gialas,G D’Agostini,J C Hart,I Brock,S Kananov,P Kaur,U Holm,A Solano,L A Khein,A Margotti,B Reisert,N Brümmer,S De Pasquale,H Stadie,L Adamczyk,L Zawiejski,O Ota,B Kamaluddin,A Montanari,R J Nowak,W Lohmann,M Jüngst,N Coppola,J Ciborowski,O Yu Lukina,S Antonelli,E Ron,Yu A Golubkov,A M Cooper-Sarkar,S Chekanov,R Ciesielski,I Grabowska-Bołd,I A Korzhavina,A Salii,J Whyte,L K Gladilin,K Olkiewicz,A Verbytskyi,A Kotański,K Wrona,I Makarenko,J H Loizides,W B Schmidke,S Fourletov,P Schleper,K Nagano,A Bruni,H Kowalski,R Shehzadi,S Yamada,H Hartmann,P Roloff,R Klanner,C D Catterall,C Uribe-Estrada,P Antonioli,K Tokushuku,P Kooijman,U Schneekloth,M Arneodo,U Noor,S Dusini,F Sciulli,V Drugakov,J.y Kim ,А Спиридонов ,Lloyd Stanley Durkin ,P Pluciński ,R.c.e Devenish ,J Del Peso ,P Ermolov ,M Jiménez ,B.y Oh ,Zainol Abidin Ibrahim ,Inderpal Singh ,S S Fang ,Y Onishchuk ,Y.d Ri ,A Savin ,І Каденко ,I M Gregor ,K Long ,Wolfram Dietrich Zeuner ,W Perlański ,E.g Boos ,Oleksandr Tomalak ,H.‐P Jakob ,A I Robertson ,S Boutle ,L.m Shcheglova ,M.c.k Mattingly ,J J Chwastowski ,D.s Zotkin ,Mohamad Imran Idris ,F Dal Corso ,G P Gach ,B.o Zhautykov ,D C Son ,A.s Proskuryakov ,D.d Reeder ,D Kollár ,I Katkov ,Ning Ye ,А Антонов ,L Stančo ,Wan Ahmad Tajuddin Wan Abdullah ,A Tapper ,N Vlasov ,P Bussey

doi:10.1140/epjc/s10052-010-1423-2

Abstract

Beauty production in deep inelastic scattering with events in which a muon and a jet are observed in the final state has been measured with the ZEUS detector at HERA using an integrated luminosity of 114 pb^-1. The fraction of events with beauty quarks in the data was determined using the distribution of the transverse momentum of the muon relative to the jet. The cross section for beauty production was measured in the kinematic range of photon virtuality, Q^2 > 2 Gev^2, and inelasticity, 0.05 < y < 0.7, with the requirement of a muon and a jet. Total and differential cross sections are presented and compared to QCD predictions. The beauty contribution to the structure function F_2 was extracted and is compared to theoretical predictions.

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