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Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions

G. Aad L. Aperio-Bella 1 B. Aubert 1 M. Aurousseau 1 N. Berger 1 J. Colas 1 L. Di Ciaccio 1 T.K.O. Doan 1 M. El Kacimi 1 S. Elles 1 P. Ghez 1 M. Gouanere 1 C. Goy 1 T. Guillemin 1 L. Helary 1 T. Hryn'Ova 1 P. Iengo 1 G. Ionescu 1 A. Jeremie 1 S. Jézéquel 1 M. Kataoka 1 J. Labbe 1 R. Lafaye 1 N. Massol 1 P. Perrodo 1 H. Przysiezniak 1 G. Sauvage 1 T. Todorov 1 D. Tsionou 1 I. Wingerter-Seez 1 R. Zitoun 1 Y. Zolnierowski 1 H. Bachacou 2 F. Bauer 2 N. Besson 2 M. Boonekamp 2 L. Chevalier 2 F. Chevallier 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. Lenzi 2 B. Mansoulie 2 J.-P. Meyer 2 N. Morange 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. Biscarat 3 E. Cogneras 3 G. Rahal 3 S. Albrand 4 M.L. Andrieux 4 B. Clement 4 J. Collot 4 S. Crépé-Renaudin 4 P. de Saintignon 4 P.A. Delsart 4 J. Donini 4 D. Dzahini 4 J.Y. Hostachy 4 E. Laisne 4 F. Ledroit-Guillon 4 A. Lleres 4 A. Lucotte 4 F. Malek 4 P. Martin 4 F. Polci 4 J. Stark 4 X. Sun 4 B. Trocmé 4 Emmanuel Busato 5 D. Calvet 5 S. Calvet 5 Reina Coromoto Camacho Toro 5 Diane Cinca 6 R. Febbraro 5 P.L.Y. Gris 5 N. Ghodbane 5 C. Guicheney 5 D. Pallin 5 F. Podlyski 5 C. Santoni 5 L. P. Says 5 F. Vazeille 5 S. Viret 5 S. Aoun 7 C. Bee 7 C. Benchouk 7 K. Bernardet 7 N. Boussons 7 J. C. Clèmens 7 Y. Coadou 7 P. Delpierre 7 F. Djama 7 F. Etienne 2 L. Feligioni 7 F. Henry-Couannier 7 D. Hoffmann 7 F. Hubaut 7 E. B. F. G. Knoops M. Kuna 7 E. Le Guirriec 7 Jérémy Lévêque 7 B. Li 7 E. Monnier 7 J. Odier 7 E. Petit 7 P. Pralavorio 7 Z. Qian 7 A. Rozanov 7 M. Talby 7 N. Tannoury 7 S. Tisserant 7 J. Toth 7 F. Touchard 7 L. Vacavant 7 H. Abreu 8 C. Arnault 8 E. Augé 8 P. Barrillon 8 M. Benoit 8 S. Binet 8 J.-B. Blanchard 8 C. Bourdarios 8 D. Breton 8 C. Collard 8 C. de la Taille 8 J.B. de Vivie de Regie 8 S. Diglio 8 F. Dudziak 8 L. Duflot 8 M. Escalier 8 A.C. Falou 8 L. Fayard 8 D. Fournier 8 J.-F. Grivaz 8 M. Heller 8 S. Henrot-Versillé 8 J. Hrivnac 8 L. Iconomidou-Fayard 8 J. Idarraga 8 M. Kado 8 A. Lounis 8 N. Makovec 8 P. Matricon 8 Y. Nakahama 8 F. Niedercorn 8 L. Poggioli 8 P. Puzo 8 A. Renaud 8 D. Rousseau 8 X. Ruan 8 G. Rybkin 8 J.B. Sauvan 8 J. Schaarschmidt 8 A.C. Schaffer 8 L. Serin 8 S. Simion 8 R. Tanaka 8 D. Varouchas 8 J.J. Veillet 8 I. Vukotic 8 F. Wicek 8 D. Zerwas 8 Zhiqing Zhang 8 T. Beau 9 S. Bordoni 9 G. Calderini 9 A. Camard 9 P. Cavalleri 9 E. Chareyre 9 S. de Cecco 9 F. Derue 9 D. Imbault 9 M.W. Krasny 9 D. Lacour 9 B. Laforge 9 O. Le Dortz 9 J. Lellouch 9 G. Marchiori 9 I. Nikolic-Audit 9 J. Ocariz 9 M. Ridel 9 L. Roos 9 Ph. Schwemling 9 Timothée Theveneaux-Pelzer 9 S. Trincaz-Duvoid 9 T.N. Trinh 9 F. Vannucci 10
Abstract : A search for squarks and gluinos in final states containing jets, missing transverse momentum and no electrons or muons is presented. The data were recorded by the ATLAS experiment in sqrt(s) = 7 TeV proton-proton collisions at the Large Hadron Collider. No excess above the Standard Model background expectation was observed in 35 inverse picobarns of analysed data. Gluino masses below 500 GeV are excluded at the 95% confidence level in simplified models containing only squarks of the first two generations, a gluino octet and a massless neutralino. The exclusion increases to 870 GeV for equal mass squarks and gluinos. In MSUGRA/CMSSM models with tan(beta)= 3, A_0=0 and mu>0, squarks and gluinos of equal mass are excluded below 775 GeV. These are the most stringent limits to date.
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Submitted on : Monday, March 14, 2011 - 4:28:18 PM
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G. Aad, L. Aperio-Bella, B. Aubert, M. Aurousseau, N. Berger, et al.. Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions. Physics Letters B, Elsevier, 2011, 701, pp.186-203. ⟨10.1016/j.physletb.2011.05.061⟩. ⟨in2p3-00576549⟩

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