Registration of neutral charmed mesons production and their decays in pA-interactions at 70 GeV with SVD-2 setup

Details Registration of neutral charmed mesons production and their decays in pA-interactions at 70 GeV with SVD-2 setup Registration of neutral charmed mesons production and their decays in pA-interactions at 70 GeV with SVD-2 setup

2010-04-21

arxiv.org/abs/1004.3676v1

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 10 figures, XXXIX International Symposium on Multiparticle Dynamics (ISMD) (Gomel, Belorussia). http://ismd2009.hep.b

Scientific paper

The results of data handling for E-184 experiment obtained with 70 GeV proton beam irradiation of active target with carbon, silicon and lead plates are presented. Two-prongs neutral charmed D0 and \v{D}0 -mesons decays were selected. Signal / background ratio was (51+/-17) / (38+/-13). Registration efficiency for mesons was defined and evaluation for charm production cross section at threshold energy is presented: sigma(c\^c) = 7.1 +/- 2.4(stat.) +/- 1.4(syst.) (\mu/nucleon).

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