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Measurement of sin^2\theta_{eff}^{lept} and Z-light quark couplings using the forward-backward charge asymmetry in p\bar{p} -> Z/\gamma^{*} -> e^{+}e^{-} events with L=5.0 fb^{-1} at \sqrt{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 L.S. Ancu M. Aoki M. Arov A. Askew B. Asman O. Atramentov C. Avila J. Backusmayes F. Badaud 1 L. Bagby B. Baldin D.V. Bandurin S. Banerjee E. Barberis P. Baringer J. Barreto J.F. Bartlett U. Bassler 2 V. Bazterra S. Beale A. Bean M. Begalli M. Begel C. Belanger-Champagne L. Bellantoni S.B. Beri G. Bernardi 3 R. Bernhard I. Bertram M. Besançon 2 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 3 J. Brown 3 X.B. Bu M. Buehler V. Buescher V. Bunichev S. Burdin T.H. Burnett C.P. Buszello B. Calpas 4 E. Camacho-Pérez M.A. Carrasco-Lizarraga B.C.K. Casey H. Castilla-Valdez S. Chakrabarti D. Chakraborty K.M. Chan A. Chandra G. Chen S. Chevalier-Théry 2 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 2 M.-C. Cousinou 4 A. Croc 2 D. Cutts A. Das G. Davies K. De S.J. de Jong E. de la Cruz-Burelo F. Déliot 2 M. Demarteau R. Demina D. Denisov S.P. Denisov S. Desai C. Deterre 2 K. Devaughan H.T. Diehl M. Diesburg A. Dominguez T. Dorland A. Dubey L.V. Dudko D. Duggan A. Duperrin 4 S. Dutt A. Dyshkant M. Eads D. Edmunds J. Ellison V.D. Elvira Y. Enari 3 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 V. Gavrilov Pascal Gay 1 W. Geng 4 D. Gerbaudo C.E. Gerber Y. Gershtein G. Ginther G. Golovanov A. Goussiou P.D. Grannis S. Greder 5 H. Greenlee Z.D. Greenwood E.M. Gregores G. Grenier 6 Ph. Gris 1 J.-F. Grivaz 7 A. Grohsjean 2 S. Grünendahl M.W. Grünewald T. Guillemin F. Guo 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 2 N. Huske 3 V. Hynek I. Iashvili R. Illingworth A.S. Ito S. Jabeen M. Jaffré 7 D. Jamin 4 A. Jayasinghe R. Jesik K. Johns M. Johnson D. Johnston A. Jonckheere P. Jonsson J. Joshi A.W. Jung A. Juste K. Kaadze E. Kajfasz 4 D. Karmanov P.A. Kasper I. Katsanos R. Kehoe S. Kermiche 4 N. Khalatyan A. Khanov A. Kharchilava Y.N. Kharzheev D. Khatidze M.H. Kirby J.M. Kohli A.V. Kozelov J. Kraus S. Kulikov A. Kumar A. Kupco T. Kurca 6 V.A. Kuzmin J. Kvita S. Lammers G. Landsberg P. Lebrun 6 H.S. Lee S.W. Lee W.M. Lee J. Lellouch 3 L. Li Q.Z. Li S.M. Lietti J.K. Lim D. Lincoln J. Linnemann V.V. Lipaev R. Lipton Yehan Liu Z. 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 2 R. Magana-Villalba S. Malik V.L. Malyshev Y. Maravin J. Martınez-Ortega R. Mccarthy C.L. Mcgivern M.M. Meijer A. Melnitchouk D. Menezes P.G. Mercadante M. Merkin A. Meyer J. Meyer F. Miconi 5 N.K. Mondal G.-S. Muanza 4 M. Mulhearn E. Nagy 4 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 4 J. Osta G.J. Otero y Garzon M. Padilla A. Pal N. Parashar V. Parihar S.K. Park J. Parsons R. Partridge N. Parua A. Patwa B. Penning M. Perfilov K. Peters Y. Peters K. Petridis G. Petrillo P. Pétroff 7 R. Piegaia J. Piper M.-A. Pleier P.L.M. Podesta-Lerma V.M. Podstavkov P. Polozov A.V. Popov M. Prewitt D. Price N. Prokopenko S. Protopopescu J. Qian A. Quadt B. Quinn M.S. Rangel K. Ranjan P.N. Ratoff I. Razumov P. Renkel M. Rijssenbeek I. Ripp-Baudot 5 F. Rizatdinova M. Rominsky A. Ross C. Royon 2 P. Rubinov R. Ruchti G. Safronov G. Sajot 8 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 2 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. Söldner-Rembold L. Sonnenschein K. Soustruznik J. Stark 8 V. Stolin D.A. Stoyanova M. Strauss D. Strom L. Stutte L. Suter P. Svoisky M. Takahashi A. Tanasijczuk W. Taylor M. Titov 2 V.V. Tokmenin Y.-T. Tsai D. Tsybychev B. Tuchming 2 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 6 L.S. Vertogradov M. Verzocchi M. Vesterinen D. Vilanova 2 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 C. Xu S. Yacoob R. Yamada W.-C. Yang T. Yasuda Y.A. Yatsunenko Z. Ye H. Yin K. Yip S.W. Youn J. Yu S. Zelitch T. Zhao B. Zhou J. Zhu M. Zielinski D. Zieminska L. Zivkovic
1 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
2 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
3 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
4 CPPM - Centre de Physique des Particules de Marseille
5 IPHC - Institut Pluridisciplinaire Hubert Curien
6 IPNL - Institut de Physique Nucléaire de Lyon
7 LAL - Laboratoire de l'Accélérateur Linéaire
8 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
Abstract : We measure the mass dependence of the forward-backward charge asymmetry in 157,553 $p\bar{p} \rightarrow Z/\gamma^{*} \rightarrow e^+e^-$ interactions, corresponding to 5.0 fb$^{-1}$ of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider at $\sqrt{s}=1.96$ TeV. The effective weak mixing angle ($\sin^2\theta_{eff}^{lept}$) from this process involving predominantly the first generation of quarks is extracted as $\sin^2\theta_{eff}^{lept} = 0.2309 \pm 0.0008 ({stat.}) \pm 0.0006 ({syst.})$. We also present the most precise direct measurement of the vector and axial-vector couplings of $u$ and $d$ quarks to the $Z$ boson.
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Journal articles
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http://hal.in2p3.fr/in2p3-00588689
Contributor : Emmanuelle Vernay <>
Submitted on : Tuesday, April 26, 2011 - 9:07:07 AM
Last modification on : Thursday, February 25, 2021 - 10:58:32 AM

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IN2P3 | DRS-IPHC | LAL | LPSC | CNRS | CPPM | LPC-CLERMONT | LPNHE | UPMC | UNIV-PARIS7 | IPHC | UNIV-AMU | PRES_CLERMONT | CEA | DSM-IRFU | USPC | UNIV-LYON1 | CEA-DRF | SORBONNE-UNIVERSITE | SU-SCIENCES | IP2I | UDL | SITE-ALSACE | UNIV-PARIS | GEPI | UP-SCIENCES | UGA | SU-TI

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V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, et al.. Measurement of sin^2\theta_{eff}^{lept} and Z-light quark couplings using the forward-backward charge asymmetry in p\bar{p} -> Z/\gamma^{*} -> e^{+}e^{-} events with L=5.0 fb^{-1} at \sqrt{s}=1.96 TeV. Physical Review D, American Physical Society, 2011, 84, pp.012007. ⟨10.1103/PhysRevD.84.012007⟩. ⟨in2p3-00588689⟩

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