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J/gy suppression as evidence for high densities in nuclear collisions

  • S. Gavin
  • H. Satz
  • R. L. Thews
  • R. Vogt
Article

Abstract

We determine the hadron density necessary to account forJ/ψ suppression in nuclear collisions by absorption, including the effects of nuclear stopping andJ/ψ formation time. The suppression measured in central 200 GeV/A O-U and S-U collisions cannot be obtained from interactions of theJ/ψ with the primary nucleons alone. Absorption on primary and secondary hadrons can describe these data, however, provided the density of the secondaries is at least 0.8 fm−3, i.e., five times standard nuclear density.

Keywords

Field Theory Elementary Particle Quantum Field Theory Particle Acceleration Formation Time 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • S. Gavin
    • 1
  • H. Satz
    • 2
    • 3
  • R. L. Thews
    • 4
  • R. Vogt
    • 5
  1. 1.Physics DepartmentBrookhaven National LaboratoryUptonUSA
  2. 2.Fakultät für PhysikUniversität BielefeldBielefeldGermany
  3. 3.Theory DivisionCERNGeneva 23Switzerland
  4. 4.Physics DepartmentUniversity of ArizonaTucsonUSA
  5. 5.GSIDarmstadtGermany

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