Search for a Standard Model Higgs boson in the mass range 200-600 GeV in the H->ZZ->llqq decay channel

G. Aad S. Albrand 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 J. Wang 1 C. Weydert 1 C. Biscarat 2 E. Cogneras 2 G. Rahal 2 F. Vannucci 3 D. Boumediene 4 E. Busato 4 D. Calvet 4 S. Calvet 4 R. Camacho Toro 4 Diane Cinca 5 J. Donini 4 R. Febbraro 4 N. Ghodbane 4 C. Guicheney 4 H. Liao 4 D. Pallin 4 D. Paredes Hernandez 4 F. Podlyski 4 C. Santoni 4 F. Vazeille 4 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 A. Jérémie 6 S. Jézéquel 6 M. Kataoka 6 J. Labbe 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. Abdel Khalek 7 H. Abreu 7 N. Andari 7 C. Arnault 7 E. Augé 7 P. Barrillon 7 M. Benoit 7 S. Binet 7 C. Bourdarios 7 C. De La Taille 7 J.B. De Vivie De Regie 7 L. Duflot 7 M. Escalier 7 L. Fayard 7 D. Fournier 7 J.-F. Grivaz 7 S. Henrot-Versillé 7 J. Hrivnac 7 L. Iconomidou-Fayard 7 J. Idarraga 7 M. Kado 7 N. Lorenzo Martinez 7 A. Lounis 7 N. Makovec 7 P. Matricon 7 F. Niedercorn 7 L. Poggioli 7 P. Puzo 7 A. Renaud 7 D. Rousseau 7 G. Rybkin 7 J.B. Sauvan 7 J. Schaarschmidt 7 A.C. Schaffer 7 E. Scifo 7 L. Serin 7 S. Simion 7 R. Tanaka 7 M. Teinturier 7 J.J. Veillet 7 I. Vukotic 7 F. Wicek 7 D. Zerwas 7 Z. Zhang 7 S. Aoun 8 C. P. Bee 8 C. Bertella 8 N. Bousson 8 J. C. Clémens 8 Y. Coadou 8 F. Djama 8 F. Etienne 8 L. Feligioni 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 A. Rozanov 8 M. Talby 8 N. Tannoury 8 S. Tisserant 8 J. Toth 8 F. Touchard 8 L. Vacavant 8
Abstract : A search for a heavy Standard Model Higgs boson decaying via H->ZZ->llqq, where l=e or mu, is presented. The search uses a data set of pp collisions at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 4.7 fb^-1 collected in 2011 by the ATLAS detector at the CERN LHC. No significant excess of events above the estimated background is found. Upper limits at 95% confidence level on the production cross section of a Higgs boson with a mass in the range between 200 and 600 GeV are derived. A Standard Model Higgs boson with a mass in the range 300 <= mH <= 322 GeV or 353 <= mH <= 410 GeV is excluded at 95% CL. The corresponding expected exclusion range is 351 <= mH <= 404 GeV at 95% CL.
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Journal articles
Physics Letters B, Elsevier, 2012, 717, pp.70-88. <10.1016/j.physletb.2012.09.020>


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Submitted on : Wednesday, June 13, 2012 - 8:00:50 AM
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G. Aad, S. Albrand, Q. Buat, B. Clement, J. Collot, et al.. Search for a Standard Model Higgs boson in the mass range 200-600 GeV in the H->ZZ->llqq decay channel. Physics Letters B, Elsevier, 2012, 717, pp.70-88. <10.1016/j.physletb.2012.09.020>. <in2p3-00707586>

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