The pt-differential inclusive production cross sections of the prompt charmed mesons D0, D+, and D*+ in the rapidity range |y|<0.5 were measured in proton-proton collisions at sqrt(s) = 7 TeV at the LHC using the ALICE detector. Reconstructing the decays D0->K-pi+, D+->K-pi+pi+, D*+->D0pi+, and their charge conjugates, about 8,400 D0, 2,900 D+, and 2,600 D*+ mesons with 1<pt<24 GeV/c were counted, after selection cuts, in a data sample of 3.14x10^8 events collected with a minimum-bias trigger (integrated luminosity L_int = 5/nb). The results are described within uncertainties by predictions based on perturbative QCD.

Measurement of charm production at central rapidity in proton-proton collisions at sqrt {s} = 7TeV

BEOLE', Stefania;L. Bianchi;CORRALES MORALES, YASSER;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;INNOCENTI, GIAN MICHELE;MARCHISONE, MASSIMILIANO;MASERA, Massimo;MILANO, LEONARDO;ORTONA, GIACOMO;VERCELLIN, Ermanno;
2012-01-01

Abstract

The pt-differential inclusive production cross sections of the prompt charmed mesons D0, D+, and D*+ in the rapidity range |y|<0.5 were measured in proton-proton collisions at sqrt(s) = 7 TeV at the LHC using the ALICE detector. Reconstructing the decays D0->K-pi+, D+->K-pi+pi+, D*+->D0pi+, and their charge conjugates, about 8,400 D0, 2,900 D+, and 2,600 D*+ mesons with 1
2012
2012
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B. Abelev;A. Abrahantes Quintana;D. Adamová;A. M. Adare;M. M. Aggarwal;G. Aglieri Rinella;A. G. Agocs;A. Agostinelli;S. Aguilar Salazar;Z. A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/106801
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