Color-Octet Contribution to J/ψ Hadroproduction with Nonzero p_T at Fixed Target Energies

1996/08/11 by Leonid Slepchenko, Slepchenko, Leonid, Avto Tkabladze +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9608296

Contribution to the III German -- Russian Workshop on Heavy Quark Physics, Dubna, Russia, May 20-22, 1996. 8 pages, LaTeX, 2 Postscript figures

arxiv created 1996/08/11 · arxiv updated 2009/11/30

Abstract

We calculated the color-octet contribution to the \ps hadroproduction at fixed target energies √(s)≃40 GeV. We consider the \ps production with transverse momenta which can not be explained by primordial motion of partons, p_T>1.5 GeV. It is shown that color octet contribution is dominant at these energies and reduces large dicrepancies between experimental data and color singlet model predictions. Having taken into account both contribution one needs a K-factor about 2-3 to explain the experimental data.

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