Search for Supersymmetry in Events with Large Missing Transverse Momentum, Jets, and at Least One Tau Lepton in 7 TeV Proton-Proton Collision Data with the ATLAS Detector

G. Aad S. Albrand 1 M.L. Andrieux 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 F. Malek 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 S. Abdel Khalek 3 H. Abreu 3 N. Andari 3 C. Arnault 3 E. Augé 3 P. Barrillon 3 M. Benoit 3 S. Binet 3 C. Bourdarios 3 C. De La Taille 3 J.B. De Vivie De Regie 3 L. Duflot 3 M. Escalier 3 L. Fayard 3 D. Fournier 3 J.-F. Grivaz 3 S. Henrot-Versillé 3 J. Hrivnac 3 L. Iconomidou-Fayard 3 J. Idarraga 3 M. Kado 3 N. Lorenzo Martinez 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 G. Rybkin 3 J.B. Sauvan 3 J. Schaarschmidt 3 A.C. Schaffer 3 L. Serin 3 S. Simion 3 R. Tanaka 3 M. Teinturier 3 J.J. Veillet 3 I. Vukotic 3 F. Wicek 3 D. Zerwas 3 Z. Zhang 3 F. Vannucci 4 D. Boumediene E. Busato 5 D. Calvet 5 S. Calvet 5 R. Camacho Toro 5 Diane Cinca 6 J. Donini 5 R. Febbraro 5 N. Ghodbane 5 Ph. Gris 5 C. Guicheney 5 H. Liao 5 D. Pallin 5 D. Paredes Hernandez 5 F. Podlyski 5 C. Santoni 5 F. Vazeille 5 S. Aoun 7 C. P. Bee 7 C. Bertella 7 N. Bousson 7 J. C. Clémens 7 Y. Coadou 7 F. Djama 7 F. Etienne 7 L. Feligioni 7 D. Hoffmann 7 F. Hubaut 7 E. B. F. G. Knoops 7 E. Le Guirriec 7 B. Li 7 J. Maurer 7 E. Monnier 7 J. Odier 7 P. Pralavorio 7 A. Rozanov 7 M. Talby 7 N. Tannoury 7 E. Tiouchichine 7 S. Tisserant 7 J. Toth 7 F. Touchard 7 L. Vacavant 7 L. Aperio Bella 8 B. Aubert 8 N. Berger 8 J. Colas 8 M. Delmastro 8 L. Di Ciaccio 8 T.K.O. Doan 8 S. Elles 8 C. Goy 8 T. Hryn'Ova 8 S. Jézéquel 8 M. Kataoka 8 J. Labbe 8 R. Lafaye 8 J. Leveque 8 V.P. Lombardo 8 N. Massol 8 P. Perrodo 8 E. Petit 8 H. Przysiezniak 8 E. Richter-Was 8 G. Sauvage 8 E. Sauvan 8 M. Schwoerer 8 T. Todorov 8 D. Tsionou 8 I. Wingerter-Seez 8 R. Zitoun 8
Abstract : A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, and at least one hadronically decaying tau lepton, with zero or one additional light lepton (e/mu), has been performed using 4.7 fb-1 of proton-proton collision data at sqrt(s) = 7 TeV recorded with the ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background expectation is observed and a 95% confidence level visible cross-section upper limit for new phenomena is set. In the framework of gauge-mediated SUSY-breaking models, lower limits on the mass scale Lambda are set at 54 TeV in the regions where the stau is the next-to-lightest SUSY particle (tan(beta) > 20). These limits provide the most stringent tests to date of GMSB models in a large part of the parameter space considered.
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Journal articles
European Physical Journal C: Particles and Fields, EDP Sciences: EPJ, 2012, 72, pp.2215. <10.1140/epjc/s10052-012-2215-7>


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Submitted on : Friday, October 5, 2012 - 8:00:34 AM
Last modification on : Wednesday, November 26, 2014 - 2:00:13 PM

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G. Aad, S. Albrand, M.L. Andrieux, Q. Buat, B. Clement, et al.. Search for Supersymmetry in Events with Large Missing Transverse Momentum, Jets, and at Least One Tau Lepton in 7 TeV Proton-Proton Collision Data with the ATLAS Detector. European Physical Journal C: Particles and Fields, EDP Sciences: EPJ, 2012, 72, pp.2215. <10.1140/epjc/s10052-012-2215-7>. <in2p3-00738725>

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