Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in sqrt{s} = 7 TeV proton-proton collisions - IN2P3 - Institut national de physique nucléaire et de physique des particules
Article Dans Une Revue Physics Letters B Année : 2012

Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in sqrt{s} = 7 TeV proton-proton collisions

G. Aad , S. Albrand (1) , M.L. Andrieux (1) , B. Clement (1) , J. Collot (1) , S. Crépé-Renaudin (1) , P.A. Delsart (1) , J. Donini (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) , C. Weydert (1) , C. Biscarat (2) , E. Cogneras (2) , G. Rahal (2) , L. Aperio Bella (3) , B. Aubert (3) , N. Berger (3) , J. Colas (3) , L. Di Ciaccio (3) , T.K.O. Doan (3) , S. Elles (3) , P. Ghez (3) , C. Goy (3) , L. Helary (3) , T. Hryn'Ova (3) , A. Jérémie (3) , S. Jézéquel (3) , M. Kataoka (3) , J. Labbe (3) , R. Lafaye (3) , J. Leveque (3) , V.P. Lombardo (3) , N. Massol (3) , P. Perrodo (3) , H. Przysiezniak (3) , G. Sauvage (3) , E. Sauvan (3) , T. Todorov (3) , D. Tsionou (3) , I. Wingerter-Seez (3) , R. Zitoun (3) , Y. Zolnierowski (3) , H. Abreu (4) , N. Andari (4) , C. Arnault (4) , E. Augé (4) , P. Barrillon (4) , M. Benoit , S. Binet (4) , J.-B. Blanchard (4) , C. Bourdarios (4) , D. Breton (4) , C. Collard (4) , C. de La Taille (4) , J.B. de Vivie de Regie (4) , Sara Diglio (4) , L. Duflot (4) , M. Escalier (4) , A.C. Falou (4) , L. Fayard (4) , D. Fournier (4) , J.-F. Grivaz (4) , M. Heller (4) , S. Henrot-Versillé (4) , J. Hrivnac (4) , L. Iconomidou-Fayard (4) , J. Idarraga (4) , M. Kado (4) , A. Lounis (4) , N. Makovec (4) , P. Matricon (4) , F. Niedercorn (4) , L. Poggioli (4) , P. Puzo (4) , A. Renaud (4) , D. Rousseau (4) , X. Ruan (4) , G. Rybkin (4) , J.B. Sauvan (4) , J. Schaarschmidt (4) , A.C. Schaffer (4) , L. Serin (4) , S. Simion (4) , R. Tanaka (4) , J.J. Veillet (4) , I. Vukotic (4) , F. Wicek (4) , D. Zerwas (4) , Zhiqing Zhang (4) , T. Beau (5) , S. Bordoni (5) , G. Calderini (5) , A. Camard (5) , P. Cavalleri (5) , E. Chareyre (5) , S. de Cecco (5) , F. Derue (5) , D. Imbault (5) , M.W. Krasny (5) , D. Lacour (5) , B. Laforge (5) , O. Le Dortz (5) , J. Lellouch (5) , G. Marchiori (5) , I. Nikolic-Audit (5) , J. Ocariz (5) , M. Ridel (5) , L. Roos (5) , Ph. Schwemling (5) , Timothée Theveneaux-Pelzer (5) , S. Trincaz-Duvoid (5) , T.N. Trinh (5) , F. Vannucci (6) , Emmanuel Busato (7) , D. Calvet (7) , S. Calvet (7) , Reina Coromoto Camacho Toro (7) , Diane Cinca (7) , R. Febbraro (7) , N. Ghodbane (7) , C. Guicheney (7) , H. Liao (7) , D. Pallin (7) , F. Podlyski (7) , C. Santoni (7) , L. P. Says (7) , F. Vazeille (7) , S. Aoun (8) , C. P. Bee (8) , C. Benchouk (8) , K. Bernardet (8) , N. Bousson (8) , J. C. Clémens (8) , Y. Coadou (8) , P. Delpierre (8) , F. Djama (8) , F. Etienne (8) , L. Feligioni (8) , F. Henry-Couannier (8) , D. Hoffmann (8) , F. Hubaut (8) , E. B. F. G. Knoops (8) , E. Le Guirriec (8) , B. Li (8) , E. Monnier (8) , J. Odier (8) , E. Petit (3) , P. Pralavorio (8) , Z. Qian (8) , A. Rozanov (8) , M. Talby (8) , N. Tannoury (8) , S. Tisserant (8) , J. Toth (8) , F. Touchard (8) , L. Vacavant (8)
G. Aad
E. Cogneras
N. Berger
C. Goy
T. Hryn'Ova
E. Augé
M. Benoit
  • Fonction : Auteur
C. Collard
Sara Diglio
D. Rousseau
Zhiqing Zhang
  • Fonction : Auteur
  • PersonId : 829631
F. Vannucci
  • Fonction : Auteur
Y. Coadou
J. Odier
  • Fonction : Auteur
  • PersonId : 1433897

Résumé

Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or mu. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of 1 fb^-1 of sqrt{s} = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. Opposite-sign and same-sign dilepton events are separately studied, with no deviations from the Standard Model expectation observed. Additionally, in opposite- sign events, a search is made for an excess of same-flavour over different-flavour lepton pairs. Effective production cross sections in excess of 9.9 fb for opposite-sign events containing supersymmetric particles with missing transverse momentum greater than 250 GeV are excluded at 95% CL. For same-sign events containing supersymmetric particles with missing transverse momentum greater than 100 GeV, effective production cross sections in excess of 14.8 fb are excluded at 95% CL. The latter limit is interpreted in a simplified weak gaugino production model excluding chargino masses up to 200 GeV.

Dates et versions

in2p3-00653191 , version 1 (19-12-2011)

Identifiants

Citer

G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in sqrt{s} = 7 TeV proton-proton collisions. Physics Letters B, 2012, 709, pp.137-157. ⟨10.1016/j.physletb.2012.01.076⟩. ⟨in2p3-00653191⟩
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