Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2011-06-08
Phys.Atom.Nucl.74:324-331,2011
Physics
High Energy Physics
High Energy Physics - Experiment
9 pages, 9 figures,3 tables
Scientific paper
10.1134/S1063778811020189
The results of treatment of data obtained in the SERP-E-184experiment "Investigation of mechanisms of the production of charmed particles in proton-nucleus interactions at 70 GeV and their decays" by irradiating the active target of the SVD-2 facility consisting of carbon, silicon, and lead plates, are presented. After separating a signal from the two-particle decay of neutral charmed mesons and estimating the cross section for charm production at a threshold energy {\sigma}(c\v{c})=7.1 \pm 2.4(stat.) \pm 1.4(syst.) \mub/nucleon, some properties of D mesons are investigated. These include the dependence of the cross section on the target mass number (its A dependence); the behavior of the differential cross sections d{\sigma}/dpt2 and d{\sigma}/dxF; and the dependence of the parameter {\alpha} on the kinematical variables xF, pt2, and plab. The experimental results in question are compared with predictions obtained on the basis of the FRITIOF7.02 code.
Afonin A. G.
Aleev SVD-2 Collaboration: A. N.
Ardashev E. N.
Balandin V. P.
Basiladze S. G.
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