Search for pair production of first or second generation leptoquarks in proton-proton collisions at sqrt(s)=7 TeV using the ATLAS detector at the LHC - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Physical Review D Année : 2011

Search for pair production of first or second generation leptoquarks in proton-proton collisions at sqrt(s)=7 TeV using the ATLAS detector at the LHC

G. Aad , S. Albrand (1) , M.L. Andrieux (1) , B. Clement (1) , J. Collot (1) , S. Crépé-Renaudin (1) , P. de Saintignon (1) , P.A. Delsart (1) , J. Donini (1) , Daniel Dzahini (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) , H. Bachacou (2) , F. Bauer (2) , N. Besson (2) , N.M. Bolnet (2) , M. Boonekamp (2) , L. Chevalier (2) , J. Ernwein (2) , A.I. Etienvre (2) , A. Formica (2) , L. Gauthier (2) , F. Giraud (2) , C. Guyot (2) , S. Hassani (2) , W. Kozanecki (2) , E. Lancon (2) , J.F. Laporte (2) , E. Le Menedeu (2) , M. Legendre (2) , B. Lenzi (2) , B. Mansoulie (2) , J.-P. Meyer (2) , N. Morange (2) , R. Nicolaidou (2) , A. Ouraou (2) , D.M. Pomarede (2) , B. Resende (2) , C.R. Royon (2) , Ph. Schune (2) , J. Schwindling (2) , O. Simard (2) , M. Virchaux (2) , J. Yu (2) , C. Biscarat (3) , E. Cogneras (3) , G. Rahal (3) , C. Bee (4) , C. Benchouk (4) , K. Bernardet (4) , N. Boussons (4) , J. C. Clèmens (4) , Y. Coadou (4) , P. Delpierre (4) , F. Djama (4) , F. Etienne (4) , L. Feligioni (4) , F. Henry- Couannier (4) , D. Hoffmann (4) , F. Hubaut (4) , E. B. F. G. Knoops (4) , E. Le Guirriec (4) , B. Li (4) , E. Monnier (4) , J. Odier (4) , E. Petit (4) , P. Pralavorio (4) , Z. Qian (4) , A. Rozanov (4) , M. Talby (4) , N. Tannoury (4) , S. Tisserant (4) , J. Toth (4) , F. Touchard (4) , L. Vacavant (4) , S. Aoun (4) , Emmanuel Busato (5) , D. Calvet (5) , S. Calvet (5) , Reina Coromoto Camacho Toro (5) , Diane Cinca (5) , P.-O. Defay (5) , R. Febbraro (5) , N. Ghodbane (5) , P. Gris (5) , C. Guicheney (5) , D. Pallin (5) , F. Podlyski (5) , C. Santoni (5) , L. P. Says (5) , F. Vazeille (5) , S. Viret (5) , T. Beau (6) , S. Bordoni (6) , G. Calderini (6) , A. Camard (6) , P. Cavalleri (6) , E. Chareyre (6) , S. de Cecco (6) , F. Derue (6) , D. Imbault (6) , M.W. Krasny (6) , D. Lacour (6) , B. Laforge (6) , O. Le Dortz (6) , J. Lellouch (6) , G. Marchiori (6) , I. Nikolic-Audit (6) , J. Ocariz (6) , M. Ridel (6) , L. Roos (6) , Ph. Schwemling (6) , Timothée Theveneaux-Pelzer (6) , S. Trincaz-Duvoid (6) , T.N. Trinh (6) , F. Vannucci (7) , L. Aperio-Bella (8) , B. Aubert (8) , N. Berger (8) , J. Colas (8) , L. Di Ciaccio (8) , T.K.O. Doan (8) , M. El Kacimi (8) , S. Elles (8) , P. Ghez (8) , M. Gouanère (8) , C. Goy (8) , T. Guillemin (8) , L. Helary (8) , T. Hryn'Ova (8) , P. Iengo (8) , G. Ionescu (8) , A. Jérémie (8) , S. Jézéquel (8) , M. Kataoka (8) , J. Labbe (8) , R. Lafaye (8) , Jérémy Lévêque (8) , N. Massol (8) , P. Perrodo (8) , H. Przysiezniak (8) , G. Sauvage (8) , T. Todorov (8) , D. Tsionou (8) , I. Wingerter-Seez (8) , R. Zitoun (8) , Y. Zolnierowski (8) , H. Abreu (9) , C. Arnault (9) , E. Augé (9) , P. Barrillon (9) , M. Benoit (9) , S. Binet (9) , J.-B. Blanchard (9) , C. Bourdarios (9) , D. Breton (9) , C. Collard , C. de La Taille (9) , J.B. de Vivie de Regie (9) , Sara Diglio (9) , F. Dudziak (9) , L. Duflot (9) , M. Escalier (9) , A.C. Falou (9) , L. Fayard (9) , D. Fournier (9) , J.-F. Grivaz (9) , M. Heller (9) , S. Henrot-Versillé (9) , J. Hrivnac (9) , L. Iconomidou-Fayard (9) , J. Idarraga (9) , M. Kado (9) , A. Lounis (9) , N. Makovec (9) , P. Matricon (9) , Y. Nakahama (9) , F. Niedercorn (9) , L. Poggioli (9) , P. Puzo (9) , A. Renaud (9) , D. Rousseau (9) , X. Ruan (9) , G. Rybkin (9) , J.B. Sauvan (9) , J. Schaarschmidt (9) , A.C. Schaffer (9) , L. Serin (9) , S. Simion (9) , R. Tanaka (9) , D. Varouchas (9) , J.J. Veillet (9) , I. Vukotic (9) , F. Wicek (9) , D. Zerwas (9) , Zhiqing Zhang (9) , M. Kuna (6) , Sandrine Laplace (6, 8)
G. Aad
E. Cogneras
Y. Coadou
J. Odier
  • Fonction : Auteur
  • PersonId : 1433897
S. Calvet
F. Vannucci
  • Fonction : Auteur
N. Berger
C. Goy
T. Hryn'Ova
E. Augé
C. Collard
Sara Diglio
D. Rousseau
D. Varouchas
Zhiqing Zhang
  • Fonction : Auteur
  • PersonId : 829631

Résumé

This paper describes searches for the pair production of first or second generation scalar leptoquarks using 35/pb of proton-proton collision data recorded by the ATLAS detector at sqrt(s)=7 TeV. Leptoquarks are seached in events with two oppositely charged muons or electrons and at least two jets, and in events with one muon or electron, missing transverse momentum and at least two jets. After event selection, the observed yields are consistent with the predicted backgrounds. Leptoquark production is excluded at the 95% CL for masses mLQ<376 (319) GeV and mLQ<422 (362) GeV for first and second generation scalar leptoquarks, respectively, when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5).

Dates et versions

in2p3-00590607 , version 1 (04-05-2011)

Identifiants

Citer

G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Search for pair production of first or second generation leptoquarks in proton-proton collisions at sqrt(s)=7 TeV using the ATLAS detector at the LHC. Physical Review D, 2011, 83, pp.112006. ⟨10.1103/PhysRevD.83.112006⟩. ⟨in2p3-00590607⟩
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