Search for Anomalous Wtb Couplings in Single Top Quark Production in Pp¯ Collisions at S=1.96 TeV

V. M. Abazov,B. Abbott,B. S. Acharya,M. Adams,T. Adams,G. D. Alexeev,G. Alkhazov,A. Alton,G. Alverson,G. A. Alves,M. Aoki,A. Askew,B. Asman,S. Atkins,O. Atramentov,K. Augsten,C. Avila,J. BackusMayes,F. Badaud,L. Bagby,B. Baldin,D. V. Bandurin,S. Banerjee,E. Barberis,P. Baringer,J. Barreto,J. F. Bartlett,U. Bassler,V. Bazterra,A. Bean,M. Begalli,C. Belanger-Champagne,L. Bellantoni, S. B. Beni,G. Bernardi,R. Bernhard,I. Bertram,M. Besancon,R. Beuselinck,V. A. Bezzubov,P. C. Bhat,V. Bhatnagar,G. Blazey,S. Blessing,K. Bloom,A. Boehnlein,D. Boline,E. E. Boos,G. Borissov,T. Bose,A. Brandt,O. Brandt,R. Brock,G. Brooijmans, A. Bross,D. Brown,J. Brown,X. B. Bu,M. Buehler,V. Buescher,V. Bunichev,S. Burdin,T. H. Burnett,C. P. Buszello,B. Calpas,E. Camacho-Perez,M. A. Carrasco-Lizarraga,B. C. K. Casey,H. Castilla-Valdez,S. Chakrabarti,D. Chakraborty,K. M. Chan,A. Chandra, E. Chapon,G. Chen, S. Chevalier-Thery,D. K. Cho,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,A. Croc,D. Cutts,A. Das,G. Davies,K. De,S. J. de Jong,E. De La Cruz-Burelo,F. Deliot,R. Demina,D. Denisov,S. P. Denisov,S. Desai,C. Deterre,K. DeVaughan,H. T. Diehl,M. Diesburg,P. F. Ding,A. Dominguez,T. Dorland,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,A. Evdokimov,V. N. Evdokimov,G. Facini,T. Ferbel,F. Fiedler,F. Filthaut,W. Fisher,H. E. Fisk,M. Fortner,H. Fox,S. Fuess,A. Garcia-Bellido,G. A. Garcia-Guerra,V. Gavrilov,P. Gay,W. Geng,D. Gerbaudo,C. E. Gerber,Y. Gershtein,G. Ginther,G. Golovanov,A. Goussiou,P. D. Grannis, S. Greder,H. Greenlee,Z. D. Greenwood,E. M. Gregores,G. Grenier,Ph. Gris,J. -F. Grivaz,A. Grohsjean,S. Gruenendahl,M. W. Gruenewald,T. Guillemin,G. Gutierrez,P. Gutierrez,A. Haas,S. Hagopian,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,M. Hohlfeld,Z. Hubacek,V. Hynek,I. Iashvili,Y. Ilchenko,R. Illingworth,A. S. Ito,S. Jabeen,M. Jaffre,D. Jamin,A. Jayasinghe,R. Jesik,K. Johns,M. Johnson, A. Jonckheere,P. Jonsson,J. Joshi,A. W. Jung,A. Juste,K. Kaadze,E. Kajfasz,D. Karmanov,P. A. Kasper,I. Katsanos,R. Kehoe,S. Kermiche,N. Khalatyan,A. Khanov,A. Kharchilava,Y. N. Kharzheev,J. M. Kohli,A. V. Kozelov,J. Kraus,S. Kulikov,A. Kumar,A. Kupco,T. Kurca,V. A. Kuzmin,J. Kvita,S. Lammers,G. Landsberg,P. Lebrun, H. S. Lee,S. W. Lee,W. M. Lee,J. Lellouch,L. Li,Q. Z. Li,S. M. Lietti,J. K. Lim,D. Lincoln,J. Linnemann,V. V. Lipaev,R. Lipton, Y. Liu,A. Lobodenko,M. Lokajicek,R. Lopes de Sa,H. J. Lubatti,R. Luna-Garcia,A. L. Lyon,A. K. A. Maciel,D. Mackin,R. Madar,R. Magana-Villalba,S. Malik,V. L. Malyshev,Y. Maravin,J. Martinez-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,G. S. Muanza,M. Mulhearn,E. Nagy,M. Naimuddin,M. Narain,R. Nayyar,H. A. Neal,J. P. Negret,P. Neustroev,S. F. Novaes,T. Nunnemann,G. Obrant,J. Orduna,N. Osman,J. Osta,G. J. Otero y Garzon,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. Petroff,R. Piegaia,M. -A. Pleier,P. L. M. Podesta-Lerma,V. M. Podstavkov,P. Polozov,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,M. Rijssenbeek,I. Ripp-Baudot,F. Rizatdinova,M. Rominsky,A. Ross,C. Royon,P. Rubinov,R. Ruchti,G. Safronov,G. Sajot,P. Salcido,A. Sanchez-Hernandez,M. P. Sanders,B. Sanghi,A. S. Santos,G. Savage,L. Sawyer,T. Scanlon,R. D. Schamberger,Y. Scheglov,H. Schellman,T. Schliephake,S. Schlobohm,C. Schwanenberger,R. Schwienhorst, J. Sekaric,H. Severini,E. Shabalina,V. Shary,A. A. Shchukin,R. K. Shivpuri,V. Simak,V. Sirotenko,P. Skubic,P. Slattery,D. Smirnov,K. J. Smith,G. R. Snow,J. Snow,S. Snyder,S. Soeldner-Rembold,L. Sonnenschein,K. Soustruznik,J. Stark,V. Stolin,D. A. Stoyanova,M. Strauss,D. Strom,L. Stutte,L. Suter,P. Svoisky,M. Takahashi,A. Tanasijczuk,M. Titov,V. V. Tokmenin,Y. -T. Tsai,K. Tschann-Grimm,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,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,M. Weber,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,W. -C. Yang,T. Yasuda,Y. A. Yatsunenko,Z. Ye,H. Yin,K. Yip,S. W. Youn,J. Yu,T. Zhao,B. Zhou,J. Zhu,M. Zielinski,D. Zieminska,L. Zivkovic

Physics letters B（2012）

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摘要

We present new direct constraints on a general $Wtb$ interaction using data corresponding to an integrated luminosity of 5.4 fb$^{-1}$ collected by the D0 detector at the Tevatron $p\bar{p}$ collider. The standard model provides a purely left-handed vector coupling at the $Wtb$ vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as well. We obtain precise limits on these anomalous couplings by comparing the data to the expectations from different assumptions on the $Wtb$ coupling.

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