The p(t)-differential inclusive production cross sections of the prompt charmed mesons D-0, D+, and D*(+) in the rapidity range vertical bar y vertical bar < 0.5 were measured in proton-proton collisions at root s = 7 TeV at the LHC using the ALICE detector. Reconstructing the decays D-0 -> K-pi(+), D+ -> K-pi(+)pi(+), D*(+) -> D-0 pi(+), and their charge conjugates, about 8,400 D-0, 2,900 D+, and 2,600 D*(+) mesons with 1 < p(t) < 24 GeV/c were counted, after selection cuts, in a data sample of 3.14 x 10(8) events collected with a minimum-bias trigger (integrated luminosity L-int = 5 nb(-1)). The results are described within uncertainties by predictions based on perturbative QCD.

Measurement of charm production at central rapidity in proton-proton collisions at root s=7 TeV / B., A., A. A., Q., D., A., A. M., A., M. M., A., G. A., R., A. G., A., A., A., S. A., S., Z., A., N., A., A. A., M., S. U., A., A., A., D., A., B., A., R. A., M., A., A., A., A., E. A., A., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - STAMPA. - 01:(2012), p. 128. [10.1007/jhep01(2012)128]

Measurement of charm production at central rapidity in proton-proton collisions at root s=7 TeV

L. Cunqueiro;MEDDI, Franco;
2012

Abstract

The p(t)-differential inclusive production cross sections of the prompt charmed mesons D-0, D+, and D*(+) in the rapidity range vertical bar y vertical bar < 0.5 were measured in proton-proton collisions at root s = 7 TeV at the LHC using the ALICE detector. Reconstructing the decays D-0 -> K-pi(+), D+ -> K-pi(+)pi(+), D*(+) -> D-0 pi(+), and their charge conjugates, about 8,400 D-0, 2,900 D+, and 2,600 D*(+) mesons with 1 < p(t) < 24 GeV/c were counted, after selection cuts, in a data sample of 3.14 x 10(8) events collected with a minimum-bias trigger (integrated luminosity L-int = 5 nb(-1)). The results are described within uncertainties by predictions based on perturbative QCD.
2012
alice; hadron-hadron scattering; pp collisions
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of charm production at central rapidity in proton-proton collisions at root s=7 TeV / B., A., A. A., Q., D., A., A. M., A., M. M., A., G. A., R., A. G., A., A., A., S. A., S., Z., A., N., A., A. A., M., S. U., A., A., A., D., A., B., A., R. A., M., A., A., A., A., E. A., A., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - STAMPA. - 01:(2012), p. 128. [10.1007/jhep01(2012)128]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/499494
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