Accès ouvert déclaré
2013
preprint
Detection of $D^{\pm}$ mesons production in pA-interactions at 70 GeV
A. N. Aleev, E.N. Ardashev, A. G. Afonin, V. P. Balandin, S.G. Basiladze, S.F. Berezhnev, G. A. Bogdanova, M. Bogolyubsky, G. Ermakov, P. Ermolov, N. Furmanec, V. Golovkin, S. N. Golovnia, S. A. Gorokhov, N.V. Grishin, Ya.V. Grishkevich, D. Karmanov, A. G. Kholodenko, В. И. Киреев, A. Kiriakov, N. Kouzmine, V. N. Kramarenko, A. Kubarovsky, L. L. Kurchaninov, G. Lanshikov, A. Leflat, S.I. Lyutov, M. Merkin, G. Y. Mitrofanov, V. Petrov, Yu. Petukhov, A. V. Pleskach, V. Popov, V. M. Ronjin, V. Ryadovikov, В. А. Сенько, N. A. Shalanda, М. М. Солдатов, Л. А. Тихонова, Yu. Tsyupa, A. Vischnevskaya, V. Volkov, Andrei Vorobiev, A. Voronin, V. I. Yakimchuk, A. I. Yukaev, V.N. Zapolsky, E. G. Zverev
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Le résumé fourni par la source
The results of analysis SERP-E-184 experiment data, obtained with 70 GeV proton beam irradiation of active target with carbon, silicon and lead plates are presented. For 3-prongs charged charmed mesons decays, event selection criteria were developed and detection efficiency was calculated with detailed simulation using FRITIOF7.02 and GEANT3.21 programs. Signals of decays were found and charm production inclusive cross sections estimated at near threshold energy. The lifetimes and A-dependence of cross section were measured. Yields of D mesons and their ratios in comparison with data of other experiments and theoretical predictions are presented.
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Les sujets associés
High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle Interactions