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Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb^-1 of sqrt(s) = 7 TeV proton-proton collisions

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 P. Martin 1 F. Polci 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 D. Boumediene 3 Emmanuel Busato 3 D. Calvet 3 S. Calvet 3 Reina Coromoto Camacho Toro 3 Diane Cinca 4 J. Donini 3 R. Febbraro 3 N. Ghodbane 3 C. Guicheney 3 H. Liao 3 D. Pallin 3 Daniela Paredes Hernández 3 F. Podlyski 3 C. Santoni 3 F. Vazeille 3 F. Vannucci 5 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 L. Helary 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 Zhiqing 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 F. Henry-Couannier 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 : Results are presented of a search for new particles decaying to large numbers of jets in association with missing transverse momentum, using 4.7 fb^-1 of pp collision data at sqrt(s) = 7 TeV collected by the ATLAS experiment at the Large Hadron Collider in 2011. The event selection requires missing transverse momentum, no isolated electrons or muons, and from >=6 to >=9 jets. No evidence is found for physics beyond the Standard Model. The results are interpreted in the context of a MSUGRA/CMSSM supersymmetric model, where, for large universal scalar mass m_0, gluino masses smaller than 840 GeV are excluded at the 95% confidence level, extending previously published limits. Within a simplified model containing only a gluino octet and a neutralino, gluino masses smaller than 870 GeV are similarly excluded for neutralino masses below 100 GeV.
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Submitted on : Tuesday, June 12, 2012 - 10:13:41 AM
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G. Aad, S. Albrand, Q. Buat, B. Clement, J. Collot, et al.. Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb^-1 of sqrt(s) = 7 TeV proton-proton collisions. Journal of High Energy Physics, Springer, 2012, 7, pp.167. ⟨10.1007/JHEP07(2012)167⟩. ⟨in2p3-00707168⟩

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