Charmed particle production in hadron-hadron collisions |
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Authors: | G. H. Arakelyan P. E. Volkovitsky |
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Affiliation: | 1. Theoretical Department, Yerevan Physics Institute, Br. Alikhanyan's str. 2, 375036, Yerevan, Armenia 2. Department of Physics and Astronomy, George Mason University, 22030, Fairfax, USA
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Abstract: | In the framework of Quark-Gluon-String Model developed recently in ITEP we calculate spectra of charmed particlesD,D s,Λc,Ξc,Ωc in hadron-hadron collisions taking into account the decays ofS-wave resonances like D*,Ds *,Σc,Σc *,Ξc *,Ξc ′, and Ωc *. We describe the bulk of the existing data onD, D*, adΛ c production in πp andpp collisions and predict the yield of charmed particlesin Σ?p and Ξ?p reactions at hyperon beam energies of 340 GeV/c and 600 GeV/c. Because of significant production of baryon resonances our predictions for unfavored fragmentation differ from predictions of other models which do not take resonance production into account. |
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