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Measurements of top quark pair relative differential cross-sections with ATLAS in pp collisions at sqrt(s) = 7 TeV

G. Aad S. Aoun 1 C. P. Bee 1 C. Bertella 1 N. Bousson 1 J. C. Clémens 1 Y. Coadou 1 F. Djama 1 F. Etienne 1 L. Feligioni 1 D. Hoffmann 1 F. Hubaut 1 E.B.F.G. Knoops 1 E. Le Guirriec 1 B. Li 1 J. Maurer 1 E. Monnier 1 J. Odier 1 P. Pralavorio 1 A. Rozanov 1 M. Talby 1 N. Tannoury 1 S. Tisserant 1 J. Toth 1 F. Touchard 1 L. Vacavant 1 C. Biscarat 2 E. Cogneras 2 G. Rahal 2 S. Albrand 3 Q. Buat 3 B. Clement 3 J. Collot 3 S. Crépé-Renaudin 3 B. Dechenaux 3 T. Delemontex 3 P.A. Delsart 3 M.H. Genest 3 J.Y. Hostachy 3 E. Laisne 3 F. Ledroit-Guillon 3 A. Lleres 3 A. Lucotte 3 F. Malek 3 J. Stark 3 X. Sun 3 B. Trocmé 3 J. Wang 3 C. Weydert 3 S. Abdel Khalek 4 H. Abreu 4 N. Andari 4 C. Arnault 4 E. Augé 4 P. Barrillon 4 M. Benoit 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 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 P. Matricon 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 L. Serin 4 S. Simion 4 R. Tanaka 4 M. Teinturier 4 J.J. Veillet 4 I. Vukotic 4 F. Wicek 4 D. Zerwas 4 Zhen Zhang 4 D. Boumediene 5 Emmanuel Busato 5 D. Calvet 5 S. Calvet 5 Reina Coromoto Camacho Toro 5 Diane Cinca 6 J. Donini 5 R. Febbraro 5 N. Ghodbane 5 C. Guicheney 5 H. Liao 5 D. Pallin 5 Daniela Paredes Hernández 5 F. Podlyski 5 C. Santoni 5 F. Vazeille 5 F. Vannucci 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 : Measurements are presented of differential cross-sections for top quark pair production in pp collisions at sqrt(s) = 7 TeV relative to the total inclusive top quark pair production cross-section. A data sample of 2.05/fb recorded by the ATLAS detector at the Large Hadron Collider is used. Relative differential cross-sections are derived as a function of the invariant mass, the transverse momentum and the rapidity of the top quark pair system. Events are selected in the lepton (electron or muon) + jets channel. The background-subtracted differential distributions are corrected for detector effects, normalized tothe total inclusive top quark pair production cross-section and compared to theoretical predictions. The measurement uncertainties range typically between 10% and 20% and are generally dominated by systematic effects. No significant deviations from the Standard Model expectations are observed.
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Submitted on : Wednesday, July 25, 2012 - 8:35:54 AM
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G. Aad, S. Aoun, C. P. Bee, C. Bertella, N. Bousson, et al.. Measurements of top quark pair relative differential cross-sections with ATLAS in pp collisions at sqrt(s) = 7 TeV. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2013, 73, pp.2261. ⟨10.1140/epjc/s10052-012-2261-1⟩. ⟨in2p3-00720590⟩

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