NA50 final results on charmonia suppression
- Quintans C
- Alessandro B
- Alexa C
- Arnaldi R
- Atayan M
- Beol? S
- Boldea V
- Bordalo P
- Borges G
- Castanier C
- Castor J
- Chaurand B
- Cheynis B
- Chiavassa E
- Cical?? C
- Comets P
- Constantinescu S
- De Falco A
- De Marco N
- Dellacasa G
- Devaux A
- Dita S
- Fargeix J
- Force P
- Gallio M
- Gerschel C
- Giubellino P
- Golubeva B
- Grigoryan A
- Grigoryan S
- Guber F
- Guichard A
- Gulkanyan H
- Idzik M
- Jouan D
- Karavicheva L
- Kluberg L
- Kurepin B
- Le Bornec Y
- Louren?o C
- Mac Cormick M
- Marzari Chiesa A
- Masera M
- Masoni A
- Monteno M
- Musso A
- Petiau P
- Piccotti A
- Pizzi R
- Prino F
- Puddu G
- Ramos S
- Riccati L
- Santos H
- Saturnini P
- Scomparin E
- Serci S
- Shahoyan R
- Sigaudo F
- Sonderegger P
- Tarrago X
- Topilskaya S
- Usai L
- Vercellin E
- Villatte L
- Willis N
- Wu T.
- CORTESE, Pietro
- RAMELLO, Luciano
- SITTA, Mario
DOIAbstract
The most recent and final results from the NA50 experiment on charmonia production in Pb-Pb interactions at 158 GeV/c per nucleon are presented. A strong J/? suppression is observed, which increases with the centrality of the collisions. The J/? production is found to be anomalously suppressed starting at mid-centralities, when compared to a reference obtained from proton-induced collisions. The most recent developments on the determination of this normal absorption curve are explained. It is also shown that for sulphur-induced reactions there is full agreement with the extrapolated normal p-A behaviour. The suppression of ?? production in heavy ion collisions (Pb-Pb and S-U) is also presented. It is seen to increase with the centrality of ...
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