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25 April 2024

» arxiv » 1106.1563

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Properties of Neutral Charmed Mesons in Proton--Nucleus Interactions at 70 GeV
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. Bogolyubsky ; A.M. Vishnevskaya ; V.Yu. Volkov ; A.P. Vorobiev ; A.G. Voronin ; G.G. Ermakov ; P.F. Ermolov ; S.N. Golovnia ; S.A. Gorokhov ; V.F. Golovkin ; N.I. Grishin ; Ya.V. Grishkevich ; V.N. Zapolsky ; E.G. Zverev ; S.A. Zotkin ; D.S. Zotkin ; D.E. Karmanov ; V.I. Kireev ; A.A. Kiriakov ; V.N. Kramarenko ; A.V. Kubarovsky ; N.A. Kouzmine ; L.L. Kurchaninov ; G.I. Lanshikov ; 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. Ronjin ; V. N. Ryadovikov ; D.V. Savrina ; V.A. Senko ; M.M. Soldatov ; L.A. Tikhonova ; N.F. Furmanec ; A.G. Kholodenko ; Yu.P. Tsyupa ; N.A. Shalanda ; A.I. Yukaev ; V.I. Yakimchuk ;
Date:	8 Jun 2011
Abstract:	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}(cv{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.
Source:	arXiv, 1106.1563
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