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Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector

G. Aad S. Albrand 1 M.L. Andrieux 1 B. Clement 1 J. Collot 1 S. Crépé-Renaudin 1 P. de Saintignon 1 P.A. Delsart 1 J. Donini 1 Daniel Dzahini 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 H. Bachacou 3 F. Bauer 3 N. Besson 3 N.M. Bolnet 3 M. Boonekamp 3 L. Chevalier 3 J. Ernwein 3 A.I. Etienvre 3 A. Formica 3 L. Gauthier 3 F. Giraud 3 C. Guyot 3 S. Hassani 3 W. Kozanecki 3 E. Lancon 3 J.F. Laporte 3 E. Le Menedeu 3 M. Legendre 3 B. Mansoulie 3 J.-P. Meyer 3 N. Morange 3 E. Mountricha 3 R. Nicolaidou 3 A. Ouraou 3 D.M. Pomarede 3 B. Resende 3 C.R. Royon 3 Ph. Schune 3 J. Schwindling 3 O. Simard 3 M. Virchaux 3 C. Xu 3 J. Yu 3 Emmanuel Busato 4 D. Calvet 4 S. Calvet 4 Reina Coromoto Camacho Toro 4 Diane Cinca 5 R. Febbraro 4 N. Ghodbane 4 P. Gris 4 C. Guicheney 4 D. Pallin 4 C. Santoni 4 L. P. Says 4 F. Vazeille 4 T. Beau 6 S. Bordoni 6 G. Calderini 6 P. Cavalleri 6 E. Chareyre 6 S. de Cecco 6 F. Derue 6 D. Imbault 6 M.W. Krasny 6 D. Lacour 6 B. Laforge 6 O. Le Dortz 6 J. Lellouch 6 G. Marchiori 6 I. Nikolic-Audit 6 J. Ocariz 6 M. Ridel 6 L. Roos 6 Ph. Schwemling 6 Timothée Theveneaux-Pelzer 6 S. Trincaz-Duvoid 6 T.N. Trinh 6 F. Vannucci 7 S. Aoun 8 Cp. Bee 8 C. Benchouk 8 K. Bernardet 8 N. Bousson 8 J. C. Clèmens 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 8 P. Pralavorio 8 Z. Qian 8 A. Rozanov 8 M. Talby 8 N. Tannoury 8 J. Toth 8 F. Touchard 8 L. Vacavant 8 H. Abreu 9 C. Arnault 9 E. Augé 9 P. Barrillon 9 M. Benoit 9 S. Binet 9 J.-B. Blanchard 9 C. Bourdarios 9 D. Breton 9 C. Collard 10 C. de la Taille 9 J.B. de Vivie de Regie 9 S. Diglio 9 F. Dudziak 9 L. Duflot 9 M. Escalier 9 A.C. Falou 9 L. Fayard 9 D. Fournier 9 J.-F. Grivaz 9 M. Heller 9 S. Henrot-Versillé 9 J. Hrivnac 9 L. Iconomidou-Fayard 9 J. Idarraga 9 M. Kado 9 A. Lounis 9 N. Makovec 9 P. Matricon 9 Y. Nakahama 9 F. Niedercorn 9 L. Poggioli 9 P. Puzo 9 A. Renaud 9 D. Rousseau 11 X. Ruan 9 G. Rybkin 9 J.B. Sauvan 9 J. Schaarschmidt 9 A.C. Schaffer 9 L. Serin 9 S. Simion 9 R. Tanaka 9 D. Varouchas 9 J.J. Veillet 9 I. Vukotic 9 F. Wicek 9 D. Zerwas 9 Zhiqing Zhang 9 L. Aperio Bella 12 B. Aubert 12 N. Berger 12 J. Colas 12 L. Di Ciaccio 12 T.K.O. Doan 12 S. Elles 12 P. Ghez 12 M. Gouanère 12 C. Goy 12 T. Guillemin 9 L. Helary 12 T. Hryn'Ova 12 G. Ionescu 12 A. Jérémie 12 S. Jézéquel 12 M. Kataoka 12 J. Labbe 12 R. Lafaye 12 J. Leveque 12 N. Massol 12 P. Perrodo 12 H. Przysiezniak 12 G. Sauvage 12 E. Sauvan 12 T. Todorov 12 D. Tsionou 12 I. Wingerter-Seez 12 R. Zitoun 12 Y. Zolnierowski 12 M. Kuna 6 H. Torres 6 Sandrine Laplace 6, 12
Abstract : A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb-1 collected by the ATLAS detector in 2010. Several Higgs boson decay channels: H \rightarrow {\gamma}{\gamma}, H \rightarrow ZZ (*) \rightarrow llll, H \rightarrow ZZ \rightarrow ll{\nu}{\nu}, H \rightarrow ZZ \rightarrow llqq, H \rightarrow W W (*) \rightarrow l{\nu}l{\nu} and H \rightarrow W W \rightarrow l{\nu}qq (l is e, {\mu}) are combined in a mass range from 110 GeV to 600 GeV. The highest sensitivity is achieved in the mass range between 160 GeV and 170 GeV, where the expected 95% CL exclusion sensitivity is at Higgs boson production cross sections 2.3 times the Standard Model prediction. Upper limits on the cross section for its production are determined. Models with a fourth generation of heavy leptons and quarks with Standard Model-like couplings to the Higgs boson are also investigated and are excluded for a Higgs boson mass in the range from 140 GeV to 185 GeV.
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G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2011, 71, pp.1728. ⟨10.1140/epjc/s10052-011-1728-9⟩. ⟨in2p3-00600488⟩

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