Heavy-flavor production in pp and Pb-Pb collisions at LHC with ALICE

2011/09/21 by K. Schweda, Schweda, Kai
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1109.4607

openalex publication_date 2011/09/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report recent results from the ALICE experiment the Large Hadron Collider on open charmed hadron production in pp collisions at √(s) = 2.76 and 7 TeV, and Pb-Pb collisions at √s__NN = 2.76 TeV. Open charmed hadrons are kinematically fully reconstructed in the hadronic decay channels \DtoKpi, \DtoKpipi, and \DstartoDpi %D⁰→ K^-π⁺, D⁺→ K^-π⁺ π⁺, and D^*+ → D⁰ (K^-π⁺) + π⁺ and identified through their invariant mass. Combinatorial background is minimized by selecting a displaced vertex topology. Inclusive charm and beauty production is measured by detecting electrons (muons) from semi-leptonic decays of open charmed and beauty hadrons in the central (forward) region. Comparison to results from state-of-the-art QCD calculations is given. First results on nuclear modifications factors in Pb--Pb collisions from hadronic and semi-leptonic decays are presented.

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