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Journal Articles Physics Letters B Year : 2013

Search for single b*-quark production with the ATLAS detector at sqrt(s)=7 TeV

G. Aad , S. Albrand (1) , M.L. Andrieux (1) , Q. Buat (1) , B. Clement (1) , J. Collot (1) , S. Crépé-Renaudin (1) , B. Dechenaux (1) , T. Delemontex (1) , P.A. Delsart (1) , M.H. Genest (1) , J.Y. Hostachy (1) , E. Laisne (1) , F. Ledroit-Guillon (1) , A. Lleres (1) , A. Lucotte (1) , F. Malek (1) , J. Stark (1) , X. Sun (1) , B. Trocmé (1) , C. Weydert (1) , C. Biscarat (2) , G. Rahal (2) , D. Boumediene (3) , Emmanuel Busato (3) , D. Calvet (3) , S. Calvet (3) , Reina Coromoto Camacho Toro (3) , Diane Cinca (3) , J. Donini (3) , E. Dubreuil (3) , Ph. Gris (3) , N. Ghodbane (3) , C. Guicheney (3) , H. Liao (3) , D. Pallin (3) , Daniela Paredes Hernández (3) , F. Podlyski (3) , C. Santoni (3) , Loïc Valery (3) , F. Vazeille (3) , L. Aperio Bella (4) , B. Aubert (4) , N. Berger (4) , J. Colas (4) , M. Delmastro (4) , L. Di Ciaccio (4) , T.K.O. Doan (4) , S. Elles (4) , C. Goy (4) , T. Hryn'Ova (4) , S. Jézéquel (4) , H. Keoshkerian (4) , R. Lafaye (4) , J. Leveque (4) , V.P. Lombardo (4) , N. Massol (4) , P. Perrodo (4) , E. Petit (4) , H. Przysiezniak (4) , E. Richter-Was (4) , G. Sauvage (4) , E. Sauvan (4) , M. Schwoerer (4) , T. Todorov (4) , D. Tsionou (4) , I. Wingerter-Seez (4) , R. Zitoun (4) , S. Aoun (5) , M. Barbero (5) , C. P. Bee (5) , C. Bertella (5) , N. Bousson (5) , J. C. Clémens (5) , Y. Coadou (5) , F. Djama (5) , F. Etienne (5) , L. Feligioni (5) , D. Hoffmann (5) , F. Hubaut (5) , E.B.F.G. Knoops (5) , E. Le Guirriec (5) , B. Li (5) , J. Maurer (5) , E. Monnier (5) , Y. Nagai (5) , J. Odier (5) , P. Pralavorio (5) , A. Rozanov (5) , M. Talby (5) , N. Tannoury (5) , E. Tiouchichine (5) , S. Tisserant (5) , J. Toth (5) , F. Touchard (5) , M. Ughetto (5) , L. Vacavant (5) , F. Vannucci (6)
G. Aad
S. Calvet
N. Berger
C. Goy
T. Hryn'Ova
Y. Coadou
F. Vannucci
  • Function : Author

Abstract

The results of a search for an excited bottom-quark b* in pp collisions at sqrt(s)=7 TeV, using 4.7/fb of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b*-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top-quark. The search is performed in the dilepton and lepton+jets final states, which are combined to set limits on b*-quark couplings for a range of b*-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b* couplings, b*-quarks with masses less than 870 GeV are excluded at the 95% credibility level.

Dates and versions

in2p3-00771608 , version 1 (09-01-2013)

Identifiers

Cite

G. Aad, S. Albrand, M.L. Andrieux, Q. Buat, B. Clement, et al.. Search for single b*-quark production with the ATLAS detector at sqrt(s)=7 TeV. Physics Letters B, 2013, 721, pp.171-189. ⟨10.1016/j.physletb.2013.03.016⟩. ⟨in2p3-00771608⟩
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