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χ andJ/ψ suppression in heavy ion collisions and a model for its momentum dependence

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Zeitschrift für Physik C Particles and Fields

Abstract

The suppression ofJ/ψ resonance production recently observed in heavy ion collisions contains some information also on the suppression of χ states which are known to be the source of a sizeable fraction of the observedJ/ψ. We analyze recent experimental data within a model that assumes quarkgluon plasma formation in a finite volume for a short time. We extract lifetimes for critical isotherms and obtain a value for the ratio of the Debye screening masses for χ andJ/ψ in the plasma consistent with estimates from lattice QCD. We also make some detailed predictions of the ψ′ suppression pattern and speculate about the extrapolation of the present oxygen results to heavier nuclei.

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Authors and Affiliations

  1. CERN, CH-1211, Geneva 23, Switzerland

    F. Karsch

  2. University of Rome II, Department of Physics, TorVergata, via Orazio Raimondo, I-00173, Rome, Italy

    R. Petronzio

Authors
  1. F. Karsch
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  2. R. Petronzio
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Karsch, F., Petronzio, R. χ andJ/ψ suppression in heavy ion collisions and a model for its momentum dependence. Z. Phys. C - Particles and Fields 37, 627–633 (1988). https://doi.org/10.1007/BF01549724

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  • DOI: https://doi.org/10.1007/BF01549724

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