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Measurement of dijet production with a veto on additional central jet activity in pp collisions at sqrt(s)=7 TeV using the ATLAS detector

G. Aad L. Aperio Bella 1 B. Aubert 1 N. Berger 1 J. Colas 1 L. Di Ciaccio 1 T.K.O. Doan 1 S. Elles 1 P. Ghez 1 M. Gouanère 1 C. Goy 1 T. Guillemin 1 L. Helary 1 T. Hryn'Ova 1 G. Ionescu 1 A. Jérémie 1 S. Jézéquel 1 M. Kataoka 1 J. Labbe 1 R. Lafaye 1 J. Leveque 1 N. Massol 1 P. Perrodo 1 H. Przysiezniak 1 G. Sauvage 1 E. Sauvan 1 T. Todorov 1 D. Tsionou 1 I. Wingerter-Seez 1 R. Zitoun 1 Y. Zolnierowski 1 C. Biscarat 2 E. Cogneras 2 G. Rahal 2 H. Bachacou 3 F. Bauer 3 N. Besson 3 M. Bolnet 3 M. Boonekamp 3 L. Chevalier 3 J. Ernwein 3 A.I. Etienvre 3 A. Formica 3 L. Gauthier 3 F. Giraud 3 C. Guyot 3 S. Hassani 3 W. Kozanecki 3 E. Lancon 3 J.F. Laporte 3 E. Le Menedeu 3 M. Legendre 3 B. Mansoulie 3 J.-P. Meyer 3 N. Morange 3 E. Mountricha 3 Thi Hong 3 R. Nicolaidou 3 A. Ouraou 3 D.M. Pomarede 3 B. Resende 3 C.R. Royon 3 Ph. Schune 3 J. Schwindling 3 O. Simard 3 M. Virchaux 3 Emmanuel Busato 4 D. Calvet 4 S. Calvet 4 Reina Coromoto Camacho Toro 4 Diane Cinca 5 R. Febbraro 4 N. Ghodbane 4 C. Guicheney 4 D. Pallin 4 F. Podlyski 4 C. Santoni 4 L. P. Says 4 F. Vazeille 4 T. Beau 6 S. Bordoni 6 G. Calderini 6 A. Camard 6 P. Cavalleri 6 E. Chareyre 6 S. de Cecco 6 F. Derue 6 D. Imbault 6 M.W. Krasny 6 D. Lacour 6 B. Laforge 6 O. Le Dortz 6 J. Lellouch 6 G. Marchiori 6 I. Nikolic-Audit 6 J. Ocariz 6 M. Ridel 6 L. Roos 6 Ph. Schwemling 6 Timothée Theveneaux-Pelzer 6 S. Trincaz-Duvoid 6 T.N. Trinh 6 F. Vannucci 7 S. Albrand 8 M.L. Andrieux 8 B. Clement 8 J. Collot 8 S. Crépé-Renaudin 8 P.A. Delsart 8 J. Donini 8 D. Dzahini 8 J.Y. Hostachy 8 E. Laisne 8 F. Ledroit-Guillon 8 A. Lleres 8 A. Lucotte 8 F. Malek 8 P. Martin 8 F. Polci 8 J. Stark 8 X. Sun 8 B. Trocmé 8 C. Weydert 8 H. Abreu 9 N. Andari 9 C. Arnault 9 E. Augé 9 P. Barrillon 9 M. Benoit 9 S. Binet 9 J.-B. Blanchard 9 C. Bourdarios 9 D. Breton 9 C. Collard 10 C. de la Taille 9 J.B. de Vivie de Regie 9 S. Diglio 9 L. Duflot 9 M. Escalier 9 A.C. Falou 9 L. Fayard 9 D. Fournier 9 J.-F. Grivaz 9 M. Heller 9 S. Henrot-Versillé 9 J. Hrivnac 9 L. Iconomidou-Fayard 9 J. Idarraga 9 M. Kado 9 A. Lounis 9 N. Makovec 9 P. Matricon 9 F. Niedercorn 9 L. Poggioli 9 P. Puzo 9 A. Renaud 9 D. Rousseau 9 X. Ruan 9 G. Rybkin 9 J.B. Sauvan 9 J. Schaarschmidt 9 A.C. Schaffer 9 L. Serin 9 S. Simion 9 R. Tanaka 9 J.J. Veillet 9 I. Vukotic 9 F. Wicek 9 D. Zerwas 9 Zhiqing Zhang 9 S. Aoun 11 C. P. Bee 11 C. Benchouk 11 K. Bernardet 11 N. Bousson 11 J. C. Clémens 11 Y. Coadou 11 P. Delpierre 11 F. Djama 11 F. Etienne 11 L. Feligioni 11 F. Henry-Couannier 11 D. Hoffmann 11 F. Hubaut 11 E.B. F. G. Knoops 11 E. Le Guirriec 11 B. Li 11 E. Monnier 11 J. Odier 11 E. Petit 11 P. Pralavorio 11 Z. Qian 11 A. Rozanov 11 M. Talby 11 N. Tannoury 11 S. Tisserant 11 J. Toth 11 F. Touchard 11 L. Vacavant 11
Abstract : A measurement of jet activity in the rapidity interval bounded by a dijet system is presented. Events are vetoed if a jet with transverse momentum greater than 20 GeV is found between the two boundary jets. The fraction of dijet events that survive the jet veto is presented for boundary jets that are separated by up to six units of rapidity and with mean transverse momentum 50 < pT(avg) < 500 GeV. The mean multiplicity of jets above the veto scale in the rapidity interval bounded by the dijet system is also presented as an alternative method for quantifying perturbative QCD emission. The data are compared to a next-to-leading order plus parton shower prediction from the POWHEG-BOX, an all-order resummation using the HEJ calculation and the PYTHIA, HERWIG++ and ALPGEN event generators. The measurement was performed using pp collisions at sqrt(s)=7 TeV using data recorded by the ATLAS detector in 2010.
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Submitted on : Monday, July 11, 2011 - 5:12:40 PM
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G. Aad, L. Aperio Bella, B. Aubert, N. Berger, J. Colas, et al.. Measurement of dijet production with a veto on additional central jet activity in pp collisions at sqrt(s)=7 TeV using the ATLAS detector. Journal of High Energy Physics, Springer, 2011, 9, 053 (35 p.). ⟨10.1007/JHEP09(2011)053⟩. ⟨in2p3-00607930⟩

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