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Measurement of the top quark charge in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

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 F. Malek 1 C. Monini 1 J. Stark 1 X. Sun 1 B. Trocmé 1 G. Rahal 2 M. Barbero 3 C. P. Bee 3 C. Bertella 3 N. Bousson 3 J. C. Clémens 3 Y. Coadou 3 F. Djama 3 F. Etienne 3 L. Feligioni 3 D. Hoffmann 3 F. Hubaut 3 E. B. F. G. Knoops 3 E. Le Guirriec 3 B. Li 4 J. Maurer 3 E. Monnier 3 Y. Nagai 3 J. Odier 3 P. Pralavorio 3 A. Rozanov 3 T. Serre 3 M. Talby 3 N. Tannoury 3 E. Tiouchichine 3 S. Tisserant 3 J. Toth 3 F. Touchard 3 M. Ughetto 3 L. Vacavant 3 S. Abdel Khalek 5 E. Augé 5 S. Binet 5 C. Bourdarios 5 C. de la Taille 5 J.B. de Vivie de Regie 5 L. Duflot 5 M. Escalier 5 L. Fayard 5 D. Fournier 5 J.-F. Grivaz 5 T. Guillemin 5 S. Henrot-Versillé 5 J. Hrivnac 5 L. Iconomidou-Fayard 5 J. Idarraga 5 M. Kado 5 N. Lorenzo Martinez 5 A. Lounis 5 N. Makovec 5 F. Niedercorn 5 L. Poggioli 5 P. Puzo 5 A. Renaud 5 D. Rousseau 5 G. Rybkin 5 J.B. Sauvan 5 J. Schaarschmidt 5 A.C. Schaffer 5 E. Scifo 5 L. Serin 5 S. Simion 5 R. Tanaka 5 M. Teinturier 5 H.L. Tran 5 D. Zerwas 5 Zhiqing Zhang 5 D. Boumediene 6 Emmanuel Busato 6 D. Calvet 6 S. Calvet 6 J. Donini 6 E. Dubreuil 6 N. Ghodbane 6 Ph. Gris 6 C. Guicheney 6 H. Liao 6 D. Pallin 6 Daniela Paredes Hernández 6 F. Podlyski 6 C. Santoni 6 Timothée Theveneaux-Pelzer 6 Loïc Valery 6 F. Vazeille 6 N. Berger 7 J. Colas 7 M. Delmastro 7 L. Di Ciaccio 7 T.K.O. Doan 7 S. Elles 7 C. Goy 7 T. Hryn'Ova 7 S. Jézéquel 7 H. Keoshkerian 7 R. Lafaye 7 J. Leveque 7 V.P. Lombardo 7 M. Maeno 7 N. Massol 7 P. Perrodo 7 E. Petit 7 H. Przysiezniak 7 G. Sauvage 7 E. Sauvan 7 M. Schwoerer 7 T. Todorov 7 I. Wingerter-Seez 7 R. Zitoun 7
Abstract : A measurement of the top quark electric charge is carried out in the ATLAS experiment at the Large Hadron Collider using 2.05 fb-1 of data at a centre-of-mass energy of 7 TeV. In units of the elementary electric charge, the top quark charge is determined to be 0.64 +- 0.02 (stat.) +- 0.08 (syst.) from the charges of the top quark decay products in single lepton ttbar candidate events. This excludes models that propose a heavy quark of electric charge --4/3, instead of the Standard Model top quark, with a significance of more than 8 sigma.
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Submitted on : Thursday, July 18, 2013 - 8:15:02 AM
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G. Aad, S. Albrand, Q. Buat, B. Clement, J. Collot, et al.. Measurement of the top quark charge in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector. Journal of High Energy Physics, Springer, 2013, 11, pp.031. ⟨10.1007/JHEP11(2013)031⟩. ⟨in2p3-00845848⟩

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