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Importance of gluon-gluon and quark-antiquark contributions to charmonium production in proton-proton and antiproton-proton collisions

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The importance of the gluon-gluon and quark-antiquark contributions to the production of charmonium states in proton-proton and antiproton-proton collisions is determined within the parton model in a way which does not rely on any assumption on the dynamics (leading diagrams, color neutralisation mechanism,h). It is shown that the combined analysis of total and differential inclusiveJ/ψ production cross-sections for both systems allows such a determination. The primordial contributions are also extracted at one energy. The implications of the numerical values are also discussed.

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Authors and Affiliations

  1. Laboratoire de Physique Nucléaire, Université de Nantes, Rue de la Houssinière, 57, F-44072, Nantes Cedex 03, France

    P. -B. Gossiaux

  2. Institut de Physique B5, Sart Tilman, Université de Liège, B-4000, Liège 1, Belgium

    J. Cugnon

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  1. P. -B. Gossiaux
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  2. J. Cugnon
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Gossiaux, P.B., Cugnon, J. Importance of gluon-gluon and quark-antiquark contributions to charmonium production in proton-proton and antiproton-proton collisions. Z. Physik A - Hadrons and Nuclei 351, 199–208 (1995). https://doi.org/10.1007/BF01289530

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  • DOI: https://doi.org/10.1007/BF01289530

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