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Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with the ATLAS detector

G. Aad H. Bachacou 1 F. Bauer 1 N. Besson 1 N.M. Bolnet 1 M. Boonekamp 1 L. Chevalier 1 J. Ernwein 1 A.I. Etienvre 1 A. Formica 1 L. Gauthier 1 F. Giraud 1 C. Guyot 1 S. Hassani 1 W. Kozanecki 1 E. Lancon 1 J.F. Laporte 1 E. Le Menedeu 1 M. Legendre 1 B. Lenzie 1 B. Mansoulie 1 J.-P. Meyer 1 N. Morange 1 E. Mountricha 1 Thi Hong 1 R. Nicolaidou 1 A. Ouraou 1 D.M. Pomarede 1 B. Resende 1 C.R. Royon 1 Ph. Schune 1 J. Schwindling 1 O. Simard 1 M. Virchaux 1 C. Xu 1 J. Yu 1 C. Biscarat 2 E. Cogneras 2 G. Rahal 2 H. Abreu 3 N. Andari 3 C. Arnault 3 E. Augé 3 P. Barrillon 3 M. Benoit 3 S. Binet 3 J.-B. Blanchard 3 C. Bourdarios 3 D. Breton 3 C. Collard 3 C. de la Taille 3 J.B. de Vivie de Regie 3 S. Diglio 3 L. Duflot 3 M. Escalier 3 A.C. Falou 3 L. Fayard 3 D. Fournier 3 J.-F. Grivaz 3 M. Heller 3 S. Henrot-Versillé 3 J. Hrivnac 3 L. Iconomidou-Fayard 3 J. Idarraga 3 M. Kado 3 A. Lounis 3 N. Makovec 3 P. Matricon 3 F. Niedercorn 3 L. Poggioli 3 P. Puzo 3 A. Renaud 3 D. Rousseau 3 X. Ruan 3 G. Rybkin 3 J.B. Sauvan 3 J. Schaarschmidt 3 A.C. Schaffer 3 L. Serin 3 S. Simion 3 R. Tanaka 3 J.J. Veillet 3 I. Vukotic 3 F. Wicek 3 D. Zerwas 3 Zhiqing Zhang 3 Emmanuel Busato 4 D. Calvet 4 S. Calvet 4 Reina Coromoto Camacho Toro 4 Diane Cinca 5 R. Febbraro 4 N. Ghodbane 4 C. Guicheney 4 H. Liao 4 D. Pallin 4 F. Podlyski 4 C. Santoni 4 L. P. Says 4 F. Vazeille 4 L. Aperio Bella 6 B. Aubert 6 N. Berger 6 J. Colas 6 L. Di Ciaccio 6 T.K.O. Doan 6 S. Elles 6 P. Ghez 6 C. Goy 6 T. Guillemin 6 L. Helary 6 T. Hryn'Ova 6 G. Ionescu 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 H. Przysiezniak 6 E. Richter-Was 6 G. Sauvage 6 E. Sauvan 6 T. Todorov 6 D. Tsionou 6 I. Wingerter-Seez 6 R. Zitoun 6 Y. Zolnierowski 6 T. Beau 7 S. Bordoni 7 G. Calderini 7 A. Camard 7 P. Cavalleri 7 E. Chareyre 7 S. de Cecco 7 F. Derue 7 D. Imbault 7 M.W. Krasny 7 D. Lacour 7 B. Laforge 7 O. Le Dortz 7 J. Lellouch 7 G. Marchiori 7 I. Nikolic-Audit 7 J. Ocariz 7 M. Ridel 7 L. Roos 7 Ph. Schwemling 7 Timothée Theveneaux-Pelzer 7 S. Trincaz-Duvoid 7 T.N. Trinh 7 F. Vannucci 8 S. Albrand 9 M.L. Andrieux 9 B. Clement 9 J. Collot 9 S. Crépé-Renaudin 9 P.A. Delsart 9 J. Donini 9 J.Y. Hostachy 9 E. Laisne 9 F. Ledroit-Guillon 9 A. Lleres 9 A. Lucotte 9 F. Malek 9 P. Martin 9 F. Polci 9 J. Stark 9 X. Sun 9 B. Trocmé 9 C. Weydert 9 S. Aoun 10 C. P. Bee 10 C. Benchouk 10 N. Bousson 10 J. C. Clémens 10 Y. Coadou 10 F. Djama 10 F. Etienne 10 L. Feligioni 10 F. Henry-Couannier 10 D. Hoffmann 10 F. Hubaut 10 E.B.F.G. Knoops 10 E. Le Guirriec 10 B. Li 10 J. Maurer 10 E. Monnier 10 J. Odier 10 E. Petit 10 P. Pralavorio 10 Z. Qian 10 A. Rozanov 10 M. Talby 10 N. Tannoury 10 S. Tisserant 10 J. Toth 10 F. Touchard 10 L. Vacavant 10 K. Bernardet 10 P. Delpierre 10
Abstract : A search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->l+l-l+l-, where l=e,mu, is presented. Proton-proton collision data at sqrt(s)=7 TeV recorded with the ATLAS detector and corresponding to an average integrated luminosity of 2.1 fb-1 are compared to the Standard Model expectations. Upper limits on the production cross section of a Standard Model Higgs boson with a mass between 110 and 600 GeV are derived. The observed (expected) 95% confidence level upper limit on the production cross section for a Higgs boson with a mass of 194 GeV, the region with the best expected sensitivity for this search, is 0.99 (1.01) times the Standard Model prediction. The Standard Model Higgs boson is excluded at 95% confidence level in the mass ranges 191-197, 199-200 and 214-224 GeV.
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Submitted on : Thursday, November 3, 2011 - 3:46:13 PM
Last modification on : Wednesday, September 23, 2020 - 4:37:38 AM

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G. Aad, H. Bachacou, F. Bauer, N. Besson, N.M. Bolnet, et al.. Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with the ATLAS detector. Physics Letters B, Elsevier, 2011, 705, pp.435-451. ⟨10.1016/j.physletb.2011.10.034⟩. ⟨in2p3-00637978⟩

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