J/{psi} and {psi}{prime} suppression in high-energy heavy-ion collisions

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The anomalous suppression of J/{psi} production in Pb-Pb collisions at 158 GeV observed by the NA50 Collaboration can be explained as due to the occurrence of a new phase of strong J/{psi} absorption, which sets in when the local energy density exceeds about 3.4 GeV/fm{sup 3}. The peculiar behavior of the {psi}{sup `}/{psi} ratio in {ital p}-A and nucleus-nucleus collisions can be understood as due to approximately equal {psi}-N and {psi}{sup `}-N absorption cross sections, but greater absorption cross sections for {psi}{sup `} than J/{psi} with regard to absorption by soft particles and matter in the new phase.

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10 p.

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Wong, Cheuk-Yin September 1, 1996.

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Description

The anomalous suppression of J/{psi} production in Pb-Pb collisions at 158 GeV observed by the NA50 Collaboration can be explained as due to the occurrence of a new phase of strong J/{psi} absorption, which sets in when the local energy density exceeds about 3.4 GeV/fm{sup 3}. The peculiar behavior of the {psi}{sup `}/{psi} ratio in {ital p}-A and nucleus-nucleus collisions can be understood as due to approximately equal {psi}-N and {psi}{sup `}-N absorption cross sections, but greater absorption cross sections for {psi}{sup `} than J/{psi} with regard to absorption by soft particles and matter in the new phase.

Physical Description

10 p.

Notes

INIS; OSTI as DE96015051

Source

  • Quark Matter `96: 12. international conference on ultra-relativistic nucleus-nucleus collisions, Heidelberg (Germany), 20-24 May 1996

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  • Other: DE96015051
  • Report No.: CONF-960579--2
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 371254
  • Archival Resource Key: ark:/67531/metadc676886

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  • September 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Jan. 22, 2016, 7:50 p.m.

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Wong, Cheuk-Yin. J/{psi} and {psi}{prime} suppression in high-energy heavy-ion collisions, article, September 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc676886/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.