Abstract
The results of processing the data of the SERP-E-184 experiment that studied mechanisms of the production of charmed particles in proton-nucleus interactions at 70 GeV and their decays are reported. The data were obtained in irradiating the SVD-2 active target consisting of carbon, silicon, and lead plates with a proton beam of energy 70 GeV. A signal from the two-body decay of neutral charmed mesons D 0 and Ď 0 is separated. The signal-to-background ratio is (51 ± 17)/(38 ± 13). A detailed simulation of relevant processes on the basis of the FRITIOF and GEANT codes made it possible to find meson-detection efficiencies and to evaluate the charm-production cross section at this energy: σ(c ĉ) = 7.1 ± 2.4(stat.) ± 1.4(syst.) µb/nucleon.
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Original Russian Text © V.N. Riadovikov, 2010, published in Yadernaya Fizika, 2010, Vol. 73, No. 9, pp. 1585–1596.
on behalf of the SVD-2 Collaboration
A. N. Aleev, E. N. Ardashev, A. G. Afonin, V. P. Balandin, S. G. Basiladze, S. F. Berezhnev, G. A. Bogdanova, M. Yu. Bogolyubskii, A. M. Vishnevskaya, V. Yu. Volkov, A. P. Vorobiev, A. G. Voronin, V. F. Golovkin, S. N. Golovnya, S. A. Gorokhov, N. I. Grishin, Ya. V. Grishkevich, G. G. Ermakov, P. F. Ermolov, V. N. Zapol’skii, E. G. Zverev, S. A. Zotkin, D. S. Zotkin, D. E. Karmanov, V. I. Kireev, A. A. Kiryakov, V. V. Konstantinov, V. N. Kramarenko, A. V. Kubarovskii, N. A. Kuz’min, L. L. Kurchaninov, G. I. Lanshchikov, A. K. Leflat, S. I. Lyutov, M. M. Merkin, G. Ya. Mitrofanov, V. S. Petrov, Yu. P. Petukhov, A. V. Pleskach, V. V. Popov, V. M. Ron’zhin, D. V. Savrina, V. A. Sen’ko, M. M. Soldatov, L. A. Tikhonova, T. P. Topuriya, N. F. Furmanets, A. G. Kholodenko, Yu. P. Tsyupa, N. A. Shalanda, A. I. Yukaev, V. I. Yakimchuk.
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Riadovikov, V.N. Detection of the production and decays of neutral charmed mesons in proton-nucleus interactions at 70 GeV with the SVD-2 facility. Phys. Atom. Nuclei 73, 1539–1550 (2010). https://doi.org/10.1134/S1063778810090085
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DOI: https://doi.org/10.1134/S1063778810090085