Measurement of the ratio of differential cross sectionsσ(pp¯→Z+bjet)/σ(pp¯→Z+jet)inpp¯collisions ats=1.96TeV

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

PHYSICAL REVIEW D（2013）

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摘要

We measure the ratio of cross sections, sigma(p (p) over bar -> Z + b jet)/sigma(p (p) over bar -> Z + jet), for associated production of a Z boson with at least one jet. The ratio is also measured as a function of the Z boson transverse momentum, jet transverse momentum, jet pseudorapidity, and the azimuthal angle between the Z boson with respect to the highest p(T) b tagged jet. These measurements use data collected by the D0 experiment in Run II of Fermilab's Tevatron p (p) over bar Collider at a center-of-mass energy of 1.96 TeV, and correspond to an integrated luminosity of 9.7 fb(-1). The results are compared to predictions from next-to-leading order calculations and various Monte Carlo event generators.

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