We present a new determination of the ratio of cross-sections (J/psi)/DY as expected for nucleus-nucleus reactions if J/psi would only be normally absorbed by nuclear matter. This anticipated behaviour is based on proton-nucleus data exclusively, and compared, as a function of centrality, with updated S-U results from experiment NA38 and with the most recent Pb-Pb results from experiment NA50.
The J/psi normal nuclear absorption
Cicalo C;DE FALCO, ALESSANDRO;USAI, GIANLUCA;
2005-01-01
Abstract
We present a new determination of the ratio of cross-sections (J/psi)/DY as expected for nucleus-nucleus reactions if J/psi would only be normally absorbed by nuclear matter. This anticipated behaviour is based on proton-nucleus data exclusively, and compared, as a function of centrality, with updated S-U results from experiment NA38 and with the most recent Pb-Pb results from experiment NA50.
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