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arXiv · 1110.4989

Inclusive charmonium production at PANDA experiment

A. V. Luchinsky·S. V. Poslavsky
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Abstract

The production of the charmonium states in proton-antiproton experiments is considered at the energy rates near threshold in NLO. Such a consideration allows one to obtain non zero distributions over the transverse momentum of the final charmonium and gives a natural explanation to the existence of $χ_{c1}$-meson in final state, that is observed experimentally and cannot be produced in leading order processes. The crucial role of scale parameter choice in $α_s (Q^2)$ and partonic distributions $f(x,Q^2)$ shown, and the correct choice offered.

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A. V. Luchinsky, S. V. Poslavsky. 2012-03-25. Inclusive charmonium production at PANDA experiment. https://doi.org/10.1103/physrevd.85.074016

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