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Measurement of jet shapes in top-quark pair events at $\sqrt{s}$ = 7 TeV using 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 D. Boumediene 3 Emmanuel Busato 3 D. Calvet 3 S. Calvet 3 J. Donini 3 E. Dubreuil 3 N. Ghodbane 3 Ph. Gris 3 C. Guicheney 3 H. Liao 3 D. Pallin 3 Daniela Paredes Hernández 3 F. Podlyski 3 C. Santoni 3 Timothée Theveneaux-Pelzer 3 Loïc Valery 3 F. Vazeille 3 S. Abdel Khalek 4 E. Augé 4 S. Binet 4 C. Bourdarios 4 C. de la Taille 4 J.B. de Vivie de Regie 4 L. Duflot 4 M. Escalier 4 L. Fayard 4 D. Fournier 4 J.-F. Grivaz 4 T. Guillemin 4 S. Henrot-Versillé 4 J. Hrivnac 4 L. Iconomidou-Fayard 4 J. Idarraga 4 M. Kado 4 N. Lorenzo Martinez 4 A. Lounis 4 N. Makovec 4 F. Niedercorn 4 L. Poggioli 4 P. Puzo 4 A. Renaud 4 D. Rousseau 4 G. Rybkin 4 J.B. Sauvan 4 J. Schaarschmidt 4 A.C. Schaffer 4 E. Scifo 4 L. Serin 4 S. Simion 4 R. Tanaka 4 M. Teinturier 4 H.L. Tran 4 D. Zerwas 4 Z. Zhang 4 N. Berger 5 J. Colas 5 M. Delmastro 5 L. Di Ciaccio 5 T.K.O. Doan 5 S. Elles 5 C. Goy 5 T. Hryn'Ova 5 S. Jézéquel 5 H. Keoshkerian 5 R. Lafaye 5 J. Leveque 5 V.P. Lombardo 5 M. Maeno 5 N. Massol 5 P. Perrodo 5 E. Petit 5 H. Przysiezniak 5 G. Sauvage 5 E. Sauvan 5 M. Schwoerer 5 T. Todorov 5 I. Wingerter-Seez 5 R. Zitoun 5 C.P. Bee 6 C. Bertella 6 N. Bousson 6 E. Monnier 6 Y. Nagai 6 J. Odier 6 P. Pralavorio 6 A. Rozanov 6 T. Serre 6 M. Talby 6 N. Tannoury 6 E. Tiouchichine 6 S. Tisserant 6 J. Toth 6 F. Touchard M. Ughetto 6 L. Vacavant 6 J. C. Clémens 6 Y. Coadou 6 F. Djama 6 F. Etienne 6 L. Feligioni 6 D. Hoffmann 6 F. Hubaut 6 E. B. F. G. Knoops 6 E. Le Guirriec 6 B. Li 6 J. Maurer 6
Abstract : A measurement of jet shapes in top-quark pair events using 1.8 fb(-1) of sqrt(s) = 7 TeV pp collision data recorded by the ATLAS detector at the LHC is presented. Samples of top-quark pair events are selected in both the single-lepton and dilepton final states. The differential and integrated shapes of the jets initiated by bottom-quarks from the top-quark decays are compared with those of the jets originated by light-quarks from the hadronic W-boson decays in the single-lepton channel. The light-quark jets are found to have a narrower distribution of the momentum flow inside the jet area than b-quark jets.
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G. Aad, S. Albrand, Q. Buat, B. Clement, J. Collot, et al.. Measurement of jet shapes in top-quark pair events at $\sqrt{s}$ = 7 TeV using the ATLAS detector. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2013, 73, pp.2676. ⟨10.1140/epjc/s10052-013-2676-3⟩. ⟨in2p3-00847196⟩

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