(Non)thermal aspects of charmonium production and a new look at [psi] suppression
To investigate a recent proposal that J/ψ production in ultra-relativistic nuclear collisions is of thermal origin we have reanalyzed the data from the NA38/50 Collaboration within a thermal model including charm. Comparison of the calculated with measured yields demonstrates the non-thermal origin...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
29 September 2000
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| In: |
Physics letters
Year: 2000, Volume: 490, Issue: 3, Pages: 196-202 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/S0370-2693(00)00991-6 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1016/S0370-2693(00)00991-6 Verlag, kostenfrei, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269300009916 
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| Author Notes: | P. Braun-Munzinger, J. Stachel |
MARC
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| 520 | |a To investigate a recent proposal that J/ψ production in ultra-relativistic nuclear collisions is of thermal origin we have reanalyzed the data from the NA38/50 Collaboration within a thermal model including charm. Comparison of the calculated with measured yields demonstrates the non-thermal origin of hidden charm production at SPS energy. However, the ratio ψ′/(J/ψ) exhibits, in central nucleus-nucleus collisions, thermal features which lead us to a new interpretation of open charm and charmonium production at SPS energy. Implications for RHIC and LHC energy measurements will be discussed. | ||
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