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Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/psi production in proton-proton collisions at √s = 7 TeV

G. Aad S. Albrand 1 M.L. Andrieux 1 B. Clement 1 J. Collot 1 S. Crépé-Renaudin 1 P. de Saintignon 1 P.A. Delsart 1 J. Donini 1 D. Dzahini 1 J.Y. Hostachy 1 E. Laisne 1 F. Ledroit-Guillon 1 A. Lleres 1 A. Lucotte 1 F. Malek 1 P. Martin 1 F. Polci 1 J. Stark 1 X. Sun 1 B. Trocmé 1 C. Biscarat 2 E. Cogneras 2 G. Rahal 2 H. Bachacou 3 F. Bauer 3 N. Besson 3 M. Boonekamp 3 L. Chevalier 3 F. 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. Lenzi 3 B. Mansoulie 3 J.-P. Meyer 3 N. Morange 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 J. Yu 3 S. Aoun 4 C. P. Bee 4 C. Benchouk 4 K. Bernardet 4 N. Boussons 4 J. C. Clèmens 4 Y. Coadou 4 P. Delpierre 4 F. Djama 4 F. Etienne 4 L. Feligioni 4 F. H. Couannier D. Hoffmann 4 F. Hubaut 4 E. B. F. G. Knoops 4 M. Kuna 4 E. Le Guirriec 4 Jérémy Lévêque 4 B. Li 4 E. Monnier 4 J. Odier 4 E. Petit P. Pralavorio 4 Z. Qian 4 A. Rozanov 4 M. Talby 4 N. Tannoury 4 S. Tisserant 4 J. Toth 4 F. Touchard 4 L. Vacavant 4 Emmanuel Busato 5 D. Calvet 5 S. Calvet 5 Reina Coromoto Camacho Toro 5 Diane Cinca 6 R. Febbraro 5 N. Ghodbane 5 P. Gris 5 C. Guicheney 5 D. Pallin 5 F. Podlyski 5 C. Santoni 5 L. P. Says 5 F. Vazeille 5 S. Viret 5 H. Abreu 7 C. Arnault 7 E. Augé 7 P. Barrillon 7 M. Benoit 7 S. Binet 7 J.-B. Blanchard 7 C. Bourdarios 7 D. Breton 7 C. Collard 7 C. de la Taille 7 J.B. de Vivie de Regie 7 S. Diglio 7 F. Dudziak 7 L. Duflot 7 M. Escalier 7 A.C. Falou 7 L. Fayard 7 D. Fournier 7 J.-F. Grivaz 7 M. Heller 7 S. Henrot-Versillé 7 J. Hrivnac 7 L. Iconomidou-Fayard 7 J. Idarraga 7 M. Kado 7 A. Lounis 7 N. Makovec 7 P. Matricon 7 Y. Nakahama 7 F. Niedercorn 7 L. Poggioli 7 P. Puzo 7 A. Renaud 7 D. Rousseau 7 X. Ruan 7 G. Rybkin 7 J.B. Sauvan 7 J. Schaarschmidt 7 A.C. Schaffer 7 L. Serin 7 S. Simion 7 R. Tanaka 7 D. Varouchas 7 J.J. Veillet 7 I. Vukotic 7 F. Wicek 7 D. Zerwas 7 Zhiqing Zhang 7 T. Beau 8 S. Bordoni 8 G. Calderini 8 A. Camard 8 P. Cavalleri 8 E. Chareyre 8 S. de Cecco 8 F. Derue 8 D. Imbault 8 M.W. Krasny 8 D. Lacour 8 B. Laforge 8 O. Le Dortz 8 J. Lellouch 8 G. Marchiori 8 I. Nikolic-Audit 8 J. Ocariz 8 M. Ridel 8 L. Roos 8 Ph. Schwemling 8 Timothée Theveneaux-Pelzer 8 S. Trincaz-Duvoid 8 T.N. Trinh 8 F. Vannucci 9 L. Aperio-Bella 10 B. Aubert 10 M. Aurousseau 10 N. Berger 10 J. Colas 10 L. Di Ciaccio 10 T.K.O. Doan 10 M. El Kacimi 10 S. Elles 10 P. Ghez 10 M. Gouanère 10 C. Goy 10 T. Guillemin 10 L. Helary 10 T. Hryn'Ova 10 P. Iengo 10 G. Ionescu 10 A. Jérémie 10 S. Jézéquel 10 M. Kataoka 10 J. Labbe 10 R. Lafaye 10 N. Massol 10 P. Perrodo 10 H. Przysiezniak 10 G. Sauvage 10 T. Todorov 10 D. Tsionou 10 I. Wingerter-Seez 10 R. Zitoun 10 Y. Zolnierowski 10 Sandrine Laplace 8, 10
Abstract : The inclusive J/psi production cross-section and fraction of J/psi mesons produced in B-hadron decays are measured in proton-proton collisions at \surd s = 7 TeV with the ATLAS detector at the LHC, as a function of the transverse momentum and rapidity of the J/psi, using 2.3 pb-1 of integrated luminosity. The cross-section is measured from a minimum pT of 1 GeV to a maximum of 70 GeV and for rapidities within |y| < 2.4 giving the widest reach of any measurement of J/psi production to date. The differential production cross-sections of prompt and non-prompt J/psi are separately determined and are compared to Colour Singlet NNLO*, Colour Evaporation Model, and FONLL predictions.
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Submitted on : Monday, April 18, 2011 - 8:57:36 AM
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G. Aad, S. Albrand, M.L. Andrieux, B. Clement, J. Collot, et al.. Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/psi production in proton-proton collisions at √s = 7 TeV. Nuclear Physics B, Elsevier, 2011, 850, pp.387-444. ⟨10.1016/j.nuclphysb.2011.05.015⟩. ⟨in2p3-00586605⟩

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