D0 cross section in pp collisions at sqrts=7 TeV, measured with the ALICE experiment

2011/12/06 by Xianbao Yuan, Yuan, Xianbao
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.1112.1248

arxiv created 2011/12/06 · openalex publication_date 2011/12/06 · arxiv updated 2011/12/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The measurement of the cross-section for charm production in pp collisions at the LHC is not only a fundamental reference to investigate medium properties in heavy-ion collisions, but also a key test of pQCD predictions in a new energy domain. The ALICE experiment has measured the D meson production in pp collisions at √(s)=7 TeV. We present the analysis procedure for \rm D⁰→ \rm K^-\rm π⁺ and for the calculation of efficiency and acceptance corrections. Finally, we show the preliminary results on \rm D⁰ cross section in pp collisions at √(s)=7 TeV, measured in the region 2<p_{\rm t}<12 GeV/c at central rapidity |y|<0.5. These results are compared to perturbative QCD predictions.

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