Fixed Target Energies
نویسندگان
چکیده
We calculated the color-octet contribution to the J/ψ hadroproduction at fixed target energies (s) ≃ 40 GeV. We consider the J/ψ production with transverse momenta which can not be explained by primordial motion of par-tons, 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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تاریخ انتشار 1996