Résumé
The Drell-Yan and J/ψ cross-sections measured in Pb-Pb collisions are compared with the values extrapolated from the results obtained in proton and light ion induced reactions. While the Drell-Yan production exhibits the normal expected behaviour, the yield of J/ψ in Pb-Pb interactions is abnormally low, as it lies 9 standard deviations below the expected value. Moreover, the departure from the expected behaviour increases significantly from peripheral to central collisions.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 337-343 |
| Nombre de pages | 7 |
| journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 410 |
| Numéro de publication | 2-4 |
| Les DOIs | |
| état | Publié - 2 oct. 1997 |
| Modification externe | Oui |
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