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ALICE_2012_I944757

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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 s=7 TeV at the LHC using the ALICE detector. Reconstructing the decays D0Kπ+, D+Kπ+π+, D+D0π+, 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 3.14×108 events collected with a minimum-bias trigger (integrated luminosity Lint=5/nb). The results are described within uncertainties by predictions based on perturbative QCD.

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