A search for prompt lepton-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Physics Letters B Année : 2013

A search for prompt lepton-jets in pp 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) , 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 (4) , 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) , S. Abdel Khalek (5) , N. Andari (5) , E. Augé (5) , M. Benoit (5) , S. Binet (5) , C. Bourdarios (5) , C. de La Taille (5) , J.B. de Vivie de Regie (5) , L. Duflot (5) , M. Escalier (5) , L. Fayard (5) , D. Fournier (5) , J.-F. Grivaz (5) , S. Henrot-Versillé (5) , J. Hrivnac (5) , L. Iconomidou-Fayard (5) , J. Idarraga (5) , M. Kado (5) , N. Lorenzo Martinez (5) , A. Lounis (5) , N. Makovec (5) , F. Niedercorn (5) , L. Poggioli (5) , P. Puzo (5) , A. Renaud (5) , D. Rousseau (5) , G. Rybkin (5) , J.B. Sauvan (5) , J. Schaarschmidt (5) , A.C. Schaffer (5) , L. Serin (5) , S. Simion (5) , R. Tanaka (5) , M. Teinturier (5) , J.J. Veillet (5) , D. Zerwas (5) , Zhiqing Zhang (5) , L. Aperio Bella (6) , B. Aubert (6) , N. Berger (6) , J. Colas (6) , M. Delmastro (6) , L. Di Ciaccio (6) , T.K.O. Doan (6) , S. Elles (6) , C. Goy (6) , T. Hryn'Ova (6) , S. Jézéquel (6) , M. Kataoka (6) , H. Keoshkerian (6) , R. Lafaye (6) , J. Leveque (6) , V.P. Lombardo (6) , N. Massol (6) , P. Perrodo (6) , E. Petit (6) , H. Przysiezniak (6) , E. Richter-Was (6) , G. Sauvage (6) , E. Sauvan (6) , M. Schwoerer (6) , T. Todorov (6) , D. Tsionou (6) , I. Wingerter-Seez (6) , R. Zitoun (6) , S. Aoun (7) , C. P. Bee (7) , C. Bertella (7) , N. Bousson (7) , J. C. Clémens (7) , Y. Coadou (7) , F. Djama (7) , F. Etienne (7) , L. Feligioni (7) , D. Hoffmann (7) , F. Hubaut (7) , E.B.F.G. Knoops (7) , E. Le Guirriec (7) , B. Li (7) , J. Maurer (7) , E. Monnier (7) , J. Odier (7) , P. Pralavorio (7) , M. Ughetto (7) , A. Rozanov (7) , M. Talby (7) , N. Tannoury (7) , E. Tiouchichine (7) , S. Tisserant (7) , J. Toth (7) , F. Touchard (7) , L. Vacavant (7) , F. Vannucci (8) , T. Beau (9) , M. Bomben (9) , S. Bordoni (9) , G. Calderini (9) , J. Chauveau (9) , O. Davignon (9) , S. de Cecco (9) , F. Derue (9) , M.W. Krasny (9) , M. Kuna (9) , D. Lacour (9) , B. Laforge (9) , S. Laplace (9) , Kun Liu (9) , B. Malaescu (5, 9) , G. Marchiori (9) , Iréna Nikolic-Audit (9) , J. Ocariz (9) , C. Rangel Smith (9) , L. Roos (9) , Timothée Theveneaux-Pelzer (9) , H. Torres (9) , S. Trincaz-Duvoid (9) , L. Yao (9)
G. Aad
S. Calvet
Diane Cinca
E. Augé
D. Rousseau
Zhiqing Zhang
  • Fonction : Auteur
  • PersonId : 829631
N. Berger
C. Goy
T. Hryn'Ova
Y. Coadou
F. Vannucci
  • Fonction : Auteur

Résumé

We present a search for a light (mass < 2 GeV) boson predicted by Hidden Valley supersymmetric models that decays into a final state consisting of collimated muons or electrons, denoted "lepton-jets". The analysis uses 5fb-1 of sqrt(s) = 7 TeV proton--proton collision data recorded by the ATLAS detector at the Large Hadron Collider to search for the following signatures: single lepton-jets with at least four muons; pairs of lepton-jets, each with two or more muons; and pairs of lepton-jets with two or more electrons. This study finds no statistically significant deviation from the Standard Model prediction and places 95% confidence-level exclusion limits on the production cross section times branching ratio of light bosons for several parameter sets of a Hidden Valley model.

Dates et versions

in2p3-00769520 , version 1 (02-01-2013)

Identifiants

Citer

G. Aad, S. Albrand, M.L. Andrieux, Q. Buat, B. Clement, et al.. A search for prompt lepton-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector. Physics Letters B, 2013, 719, pp.299-317. ⟨10.1016/j.physletb.2013.01.034⟩. ⟨in2p3-00769520⟩
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