Charm production at the LHC in pp collisions at s=7TeV is studied with the LHCb detector. The decays D0→K-π+, D+→K-π+π+, D*+→D0(K-π+)π+, Ds+→φ(K-K+)π+, Λc+→pK-π+, and their charge conjugates are analysed in a data set corresponding to an integrated luminosity of 15 nb-1. Differential cross-sections dσ/dpT are measured for prompt production of the five charmed hadron species in bins of transverse momentum and rapidity in the region 0<pT<8GeV/c and 2.0<y<4.5. Theoretical predictions are compared to the measured differential cross-sections. The integrated cross-sections of the charm hadrons are computed in the above pT-y range, and their ratios are reported. A combination of the five integrated cross-section measurements givesσ(cc̄)pT<8GeV/c,2.0<y<4.5=1419±12(stat)±116(syst)±65(frag)μb, where the uncertainties are statistical, systematic, and due to the fragmentation functions. © 2013 CERN.

Aaij, R., Abellan Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2013). Prompt charm production in pp collisions at s=7TeV. NUCLEAR PHYSICS. B, 871(1), 1-20 [10.1016/j.nuclphysb.2013.02.010].

Prompt charm production in pp collisions at s=7TeV

CALVI, MARTA;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;PEREGO, DAVIDE LUIGI;PESSINA, GIANLUIGI EZIO;
2013

Abstract

Charm production at the LHC in pp collisions at s=7TeV is studied with the LHCb detector. The decays D0→K-π+, D+→K-π+π+, D*+→D0(K-π+)π+, Ds+→φ(K-K+)π+, Λc+→pK-π+, and their charge conjugates are analysed in a data set corresponding to an integrated luminosity of 15 nb-1. Differential cross-sections dσ/dpT are measured for prompt production of the five charmed hadron species in bins of transverse momentum and rapidity in the region 0
Articolo in rivista - Articolo scientifico
Nuclear and High Energy Physics; B physics; Flavor physics, LHC Hadron Collider
English
2013
871
1
1
20
none
Aaij, R., Abellan Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., et al. (2013). Prompt charm production in pp collisions at s=7TeV. NUCLEAR PHYSICS. B, 871(1), 1-20 [10.1016/j.nuclphysb.2013.02.010].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/74805
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