Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

G. Aad; S. Albrand; M.L. Andrieux; Q. Buat; B. Clement; J. Collot; S. Crépé-Renaudin; T. Delemontex; P.A. Delsart; J.Y. Hostachy; E. Laisne; F. Ledroit-Guillon; A. Lleres; A. Lucotte; F. Malek; P. Martin; F. Polci; J. Stark; X. Sun; B. Trocmé; J. Wang; C. Weydert; C. Biscarat; E. Cogneras; G. Rahal; D. Boumediene; Emmanuel Busato; D. Calvet; S. Calvet; Reina Coromoto Camacho Toro; Diane Cinca; J. Donini; R. Febbraro; N. Ghodbane; C. Guicheney; H. Liao; D. Pallin; F. Podlyski; C. Santoni; L. P. Says; F. Vazeille; L. Aperio Bella; B. Aubert; N. Berger; J. Colas; M. Delmastro; L. Di Ciaccio; T.K.O. Doan; S. Elles; C. Goy; L. Helary; T. Hryn'Ova; A. Jérémie; S. Jézéquel; M. Kataoka; J. Labbe; R. Lafaye; J. Leveque; V.P. Lombardo; N. Massol; P. Perrodo; H. Przysiezniak; E. Richter-Was; G. Sauvage; E. Sauvan; M. Schwoerer; T. Todorov; D. Tsionou; I. Wingerter-Seez; R. Zitoun; Y. Zolnierowski; S. Aoun; C. P. Bee; C. Benchouk; C. Bertella; N. Bousson; J. C. Clémens; Y. Coadou; F. Djama; F. Etienne; L. Feligioni; F. Henry-Couannier; D. Hoffmann; F. Hubaut; E.B. F. G. Knoops; E. Le Guirriec; B. Li; J. Maurer; E. Monnier; J. Odier; P. Pralavorio; Z. Qian; A. Rozanov; M. Talby; N. Tannoury; S. Tisserant; J. Toth; F. Touchard; L. Vacavant; S. Arfaoui; H. Abreu; N. Andari; C. Arnault; E. Augé; P. Barrillon; M. Benoit; S. Binet; J.-B. Blanchard; C. Bourdarios; D. Breton; C. Collard; C. de la Taille; J.B. de Vivie de Regie; Sara Diglio; L. Duflot; M. Escalier; A.C. Falou; L. Fayard; D. Fournier; J.-F. Grivaz; M. Heller; S. Henrot-Versillé; J. Hrivnac; L. Iconomidou-Fayard; J. Idarraga; M. Kado; A. Lounis; N. Makovec; P. Matricon; F. Niedercorn; L. Poggioli; P. Puzo; A. Renaud; D. Rousseau; X. Ruan; G. Rybkin; J.B. Sauvan; J. Schaarschmidt; A.C. Schaffer; L. Serin; S. Simion; R. Tanaka; J.J. Veillet; I. Vukotic; F. Wicek; D. Zerwas; Zhiqing Zhang

doi:10.1016/j.physletb.2012.03.082

Journal articles

Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

G. Aad S. Albrand ¹ M.L. Andrieux ¹ Q. Buat ¹ B. Clement ¹ J. Collot ¹ S. Crépé-Renaudin ¹ T. Delemontex ¹ P.A. Delsart ¹ J.Y. Hostachy ¹ E. Laisne ¹ F. Ledroit-Guillon ¹ A. Lleres ¹ A. Lucotte ¹ F. Malek ¹ P. Martin ¹ F. Polci ¹ J. Stark ¹ X. Sun ¹ B. Trocmé ¹ J. Wang ¹ C. Weydert ¹ C. Biscarat ² E. Cogneras ² G. Rahal ² D. Boumediene ³ Emmanuel Busato ³ D. Calvet ³ S. Calvet ³ Reina Coromoto Camacho Toro ³ Diane Cinca ⁴ J. Donini ³ R. Febbraro ³ N. Ghodbane ³ C. Guicheney ³ H. Liao ³ D. Pallin ³ F. Podlyski ³ C. Santoni ³ L. P. Says ³ F. Vazeille ³ L. Aperio Bella ⁵ B. Aubert ⁵ N. Berger ⁵ J. Colas ⁵ M. Delmastro ⁵ L. Di Ciaccio ⁵ T.K.O. Doan ⁵ S. Elles ⁵ C. Goy ⁵ L. Helary ⁵ T. Hryn'Ova ⁵ A. Jérémie ⁵ S. Jézéquel ⁵ M. Kataoka ⁵ J. Labbe ⁵ R. Lafaye ⁵ J. Leveque ⁵ V.P. Lombardo ⁵ N. Massol ⁵ P. Perrodo ⁵ H. Przysiezniak ⁵ E. Richter-Was ⁵ G. Sauvage ⁵ E. Sauvan ⁵ M. Schwoerer ⁵ T. Todorov ⁵ D. Tsionou ⁵ I. Wingerter-Seez ⁵ R. Zitoun ⁵ Y. Zolnierowski ⁵ S. Aoun ⁶ C. P. Bee ⁶ C. Benchouk ⁶ C. Bertella ⁶ N. Bousson ⁶ J. C. Clémens ⁶ Y. Coadou ⁶ F. Djama ⁶ F. Etienne ⁶ L. Feligioni ⁶ F. Henry-Couannier ⁶ D. Hoffmann ⁶ F. Hubaut ⁶ E.B. F. G. Knoops ⁶ E. Le Guirriec ⁶ B. Li ⁶ J. Maurer ⁶ E. Monnier ⁶ J. Odier ⁶ P. Pralavorio ⁶ Z. Qian ⁶ A. Rozanov ⁶ M. Talby ⁶ N. Tannoury ⁶ S. Tisserant ⁶ J. Toth ⁶ F. Touchard ⁶ L. Vacavant ⁶ S. Arfaoui ⁶ H. Abreu ⁷ N. Andari ⁷ C. Arnault ⁷ E. Augé ⁷ P. Barrillon ⁷ M. Benoit ⁷ S. Binet ⁷ J.-B. Blanchard ⁷ C. Bourdarios ⁷ D. Breton ⁷ C. Collard C. de la Taille ⁷ J.B. de Vivie de Regie ⁷ Sara Diglio ⁷ L. Duflot ⁷ M. Escalier ⁷ A.C. Falou ⁷ L. Fayard ⁷ D. Fournier ⁷ J.-F. Grivaz ⁷ M. Heller ⁷ S. Henrot-Versillé ⁷ J. Hrivnac ⁷ L. Iconomidou-Fayard ⁷ J. Idarraga ⁷ M. Kado ⁷ A. Lounis ⁷ N. Makovec ⁷ P. Matricon ⁷ F. Niedercorn ⁷ L. Poggioli ⁷ P. Puzo ⁷ A. Renaud ⁷ D. Rousseau ⁷ X. Ruan ⁷ G. Rybkin ⁷ J.B. Sauvan ⁷ J. Schaarschmidt ⁷ A.C. Schaffer ⁷ L. Serin ⁷ S. Simion ⁷ R. Tanaka ⁷ J.J. Veillet ⁷ I. Vukotic ⁷ F. Wicek ⁷ D. Zerwas ⁷ Zhiqing Zhang ⁷

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

2 CC-IN2P3 - Centre de Calcul de l'IN2P3

3 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

4 Laboratoire de Physique Corpusculaire

LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

5 LAPP - Laboratoire d'Annecy de Physique des Particules

6 CPPM - Centre de Physique des Particules de Marseille

7 LAL - Laboratoire de l'Accélérateur Linéaire

Abstract : This letter presents a search for singly produced vector-like quarks, Q, coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC) processes, p p --> Q q --> W q q' and p p --> Q q --> Z q q' with a leptonic decay of the vector gauge boson. In 1.04/fb of data taken in 2011 by the ATLAS experiment at a center-of-mass energy sqrt(s) = 7 TeV, no evidence of such heavy vector-like quarks is observed above the expected Standard Model background. Limits on the heavy vector-like quark production cross section times branching ratio as a function of mass m_Q are obtained. For a coupling kappa_(qQ) = v/m_Q, where v is the Higgs vacuum expectation value, 95% C.L. lower limits on the mass of a vector-like quark are set at 900 GeV and 760 GeV from CC and NC processes, respectively.

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

Complete list of metadata

http://hal.in2p3.fr/in2p3-00659793
Contributor : Emmanuelle Vernay <>
Submitted on : Friday, January 13, 2012 - 4:15:50 PM
Last modification on : Wednesday, August 4, 2021 - 3:40:02 PM

Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

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Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

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