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The Role of Gluon Depletion in J/psi Suppression

R. C. Hwa·J. Pisut·N. Pisutova
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Abstract

The depletion of gluons as the parton flux traverses a nucleus in a heavy-ion collision can influence the production rate of heavy-quark states. Thus the suppression of $J/ψ$ can be due to gluon depletion in the initial state in addition to nuclear and hadronic absorption in the final state. A formalism is developed to describe the depletion effect. It is shown that, without constraints from other experimental facts beside the $J/ψ$ suppression data in $pA$ and $AB$ collisions, it is not possible to determine the relative importance of depletion vs absorption. Possible relevance to the enhanced suppression seen in the $Pb - Pb$ data is mentioned but not studied.

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R. C. Hwa, J. Pisut, N. Pisutova. 1997-02-25. The Role of Gluon Depletion in J/psi Suppression. https://doi.org/10.1103/physrevc.56.432

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