Screening and Anti-Screening Effects in J/psi Production on Nuclei
classification
✦ hep-ph
keywords
anti-screeningeffectselectroproductionnucleiregimescreeningapproachchanged
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The nuclear effects in J/psi hadro- and electroproduction on nuclei are considered in framework of reggeon approach. It is shown that screening regime which holds for electroproduction at x_F > 0.7 and for hadroproduction at x_F > -(0.3-0.4) is changed with anti-screening regime for smaller x_F values.
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