Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with 4.8 fb-1 of pp collisions at sqrt(s)=7 TeV with ATLAS - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue Physics Letters B Année : 2012

Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with 4.8 fb-1 of pp collisions at sqrt(s)=7 TeV with ATLAS

G. Aad , L. Aperio Bella (1) , B. Aubert (1) , N. Berger (1) , J. Colas (1) , M. Delmastro (1) , L. Di Ciaccio (1) , T.K.O. Doan (1) , S. Elles (1) , C. Goy (1) , L. Helary (1) , T. Hryn'Ova (1) , A. Jérémie (1) , S. Jézéquel (1) , M. Kataoka (1) , J. Labbe (1) , R. Lafaye (1) , J. Leveque (1) , V.P. Lombardo (1) , N. Massol (1) , P. Perrodo (1) , E. Petit (1) , H. Przysiezniak (1) , E. Richter-Was (1) , G. Sauvage (1) , E. Sauvan (1) , M. Schwoerer (1) , T. Todorov (1) , D. Tsionou (1) , I. Wingerter-Seez (1) , R. Zitoun (1) , Y. Zolnierowski (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) , S. Abdel Khalek (5) , H. Abreu (5) , N. Andari (5) , C. Arnault (5) , E. Augé (5) , P. Barrillon (5) , M. Benoit (5) , S. Binet (5) , C. Bourdarios (5) , C. Collard (6) , 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) , P. Matricon (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) , E. Scifo (5) , L. Serin (5) , S. Simion (5) , R. Tanaka (5) , M. Teinturier (5) , J.J. Veillet (5) , I. Vukotic (5) , F. Wicek (5) , D. Zerwas (5) , Zhiqing Zhang (5) , S. Albrand (7) , M.L. Andrieux (7) , Q. Buat (7) , B. Clement (7) , J. Collot (7) , S. Crépé-Renaudin (7) , T. Delemontex (7) , P.A. Delsart (7) , M.H. Genest (7) , J.Y. Hostachy (7) , E. Laisne (7) , F. Ledroit-Guillon (7) , A. Lleres (7) , A. Lucotte (7) , F. Malek (7) , P. Martin (7) , F. Polci (7) , J. Stark (7) , X. Sun (7) , B. Trocmé (7) , J. Wang (7) , C. Weydert (7) , S. Aoun (8) , C. P. Bee (8) , C. Benchouk (8) , C. Bertella (8) , N. Bousson (8) , J. C. Clémens (8) , Y. Coadou (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) , J. Maurer (8) , E. Monnier (8) , J. Odier (8) , 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
N. Berger
C. Goy
T. Hryn'Ova
E. Cogneras
S. Calvet
Diane Cinca
E. Augé
C. Collard
D. Rousseau
Zhiqing Zhang
  • Fonction : Auteur
  • PersonId : 829631
Y. Coadou

Résumé

This Letter presents a search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->l+l-l'+l'-, where l,l'=e or mu, using proton-proton collisions at sqrt(s)=7 TeV recorded with the ATLAS detector and corresponding to an integrated luminosity of 4.8 fb^-1. The four-lepton mass distribution is compared with Standard Model background expectations to derive upper limits on the cross section of a Standard Model Higgs boson with a mass between 110 GeV and 600 GeV which exclude the mass ranges 134-156 GeV, 182-233 GeV, 256-265 GeV and 266-415 GeV at the 95% confidence level. The largest upward deviations from the background-only hypothesis are observed for Higgs boson masses of 125, 244 and 500 GeV with local significances of 2.1, 2.2 and 2.1 standard deviations, respectively. Once the look-elsewhere effect is considered, none of these excesses are significant.

Dates et versions

in2p3-00668406 , version 1 (09-02-2012)

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G. Aad, L. Aperio Bella, B. Aubert, N. Berger, J. Colas, et al.. Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with 4.8 fb-1 of pp collisions at sqrt(s)=7 TeV with ATLAS. Physics Letters B, 2012, 710, pp.383-402. ⟨10.1016/j.physletb.2012.03.005⟩. ⟨in2p3-00668406⟩
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