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Search for neutral MSSM Higgs bosons decaying to tau^+ tau^- pairs in proton-proton 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.A. Delsart 1 J. Donini 1 D. 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 H. Bachacou 2 F. Bauer 2 N. Besson 2 N.M. Bolnet 2 M. Boonekamp 2 L. Chevalier 2 J. Ernwein 2 A.I. Etienvre 2 A. Formica 2 L. Gauthier 2 F. Giraud 2 C. Guyot 2 S. Hassani 2 W. Kozanecki 2 E. Lancon 2 J.F. Laporte 2 E. Le Menedeu 2 M. Legendre 2 B. Mansoulie 2 J.-P. Meyer 2 N. Morange 2 E. Mountricha 2 Thi Hong 2 R. Nicolaidou 2 A. Ouraou 2 D.M. Pomarede 2 B. Resende 2 C.R. Royon 2 Ph. Schune 2 J. Schwindling 2 O. Simard 2 M. Virchaux 2 C. Xu 2 J. Yu 2 C. Biscarat 3 E. Cogneras 3 G. Rahal 3 H. Abreu 4 N. Andari 4 C. Arnault 4 E. Augé 4 P. Barrillon 4 M. Benoit 4 S. Binet 4 J.-B. Blanchard 4 C. Bourdarios 4 D. Breton 4 C. Collard 5 C. de la Taille 4 J.B. de Vivie de Regie 4 S. Diglio 4 L. Duflot 4 M. Escalier 4 A.C. Falou 4 L. Fayard 4 D. Fournier 4 J.-F. Grivaz 4 M. Heller 4 S. Henrot-Versillé 4 J. Hrivnac 4 L. Iconomidou-Fayard 4 J. Idarraga 4 M. Kado 4 A. Lounis 4 N. Makovec 4 P. Matricon 4 F. Niedercorn 4 L. Poggioli 4 P. Puzo 4 A. Renaud 4 D. Rousseau 4 X. Ruan 4 G. Rybkin 4 J.B. Sauvan 4 J. Schaarschmidt 4 A.C. Schaffer 4 L. Serin 4 S. Simion 4 R. Tanaka 4 J.J. Veillet 4 I. Vukotic 4 F. Wicek 4 D. Zerwas 4 Z. Zhang 4 Emmanuel Busato 6 D. Calvet 6 S. Calvet 6 Reina Coromoto Camacho Toro 6 Diane Cinca 7 R. Febbraro 6 N. Ghodbane 6 C. Guicheney 6 D. Pallin 6 F. Podlyski 6 C. Santoni 6 L. P. Says 6 F. Vazeille 6 S. Aoun 8 C. P. Bee 8 C. Benchouk 8 K. Bernardet 8 N. Bousson 8 J. C. Clémens 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 S. Tisserant 8 J. Toth 8 F. Touchard 8 L. Vacavant 8 L. Aperio Bella 9 B. Aubert 9 N. Berger 9 J. Colas 9 L. Di Ciaccio 9 T.K.O. Doan 9 S. Elles 9 P. Ghez 9 M. Gouanère 9 C. Goy 9 T. Guillemin 9 L. Helary 9 T. Hryn'Ova 9 G. Ionescu 9 A. Jérémie 9 S. Jézéquel 9 M. Kataoka 9 J. Labbe 9 R. Lafaye 9 J. Leveque 9 N. Massol 9 P. Perrodo 9 H. Przysiezniak 9 G. Sauvage 9 E. Sauvan 9 T. Todorov 9 D. Tsionou 9 I. Wingerter-Seez 9 R. Zitoun 9 Y. Zolnierowski 9 T. Beau 10 S. Bordoni 10 G. Calderini 10 A. Camard 10 P. Cavalleri 10 E. Chareyre 10 S. de Cecco 10 F. Derue 10 D. Imbault 10 M.W. Krasny 10 D. Lacour 10 B. Laforge 10 O. Le Dortz 10 J. Lellouch 10 G. Marchiori 10 I. Nikolic-Audit 10 J. Ocariz 10 M. Ridel 10 L. Roos 10 Ph. Schwemling 10 Timothée Theveneaux-Pelzer 10 S. Trincaz-Duvoid 10 T.N. Trinh 10 F. Vannucci 11
Abstract : A search for neutral Higgs bosons decaying to pairs of tau leptons with the ATLAS detector at the LHC is presented. The analysis is based on proton-proton collisions at a center-of-mass energy of 7 TeV, recorded in 2010 and corresponding to an integrated luminosity of 36 pb^-1. After signal selection, 276 events are observed in this data sample. The observed number of events is consistent with the total expected background of 269 +/- 36 events. Exclusion limits at the 95% confidence level are derived for the production cross section of a generic Higgs boson phi as a function of the Higgs boson mass and for A/H/h production in the Minimal Supersymmetric Standard Model (MSSM) as a function of the parameters m_A and tan(beta).
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Submitted on : Tuesday, July 26, 2011 - 9:02:47 AM
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G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Search for neutral MSSM Higgs bosons decaying to tau^+ tau^- pairs in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector. Physics Letters B, Elsevier, 2011, 705, pp.174-192. ⟨10.1016/j.physletb.2011.10.001⟩. ⟨in2p3-00611267⟩

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