Charmonia and Drell-Yan production in proton-nucleus collisions at the CERN SPS
- Alessandro B
- Alexa C
- Arnaldi R
- Atayan M
- Baglin C
- Beole S
- Boldea V
- Bordalo P
- Borenstein SR
- Borges G
- Bussiere A
- Capelli L
- Castanier C
- Castor J
- Chaurand B
- Cheynis B
- Chiavassa E
- Cicalo C
- Claudino T
- Comets MP
- Constans N
- Constantinescu S
- Cortese P
- Cruz J
- DE FALCO, ALESSANDRO
- De Marco N
- Dellacasa G
- Devaux A
- Dita S
- Drapier O
- Ducroux L
- Espagnon B
- Fargeix J
- Force P
- Gallio M
- Gavrilov YK
- Gerschel C
- Giubellino P
- Golubeva MB
- Gonin M
- Grigorian AA
- Grigorian S
- Grossiord JY
- Guber FF
- Guichard A
- Gulkanyan H
- Hakobyan R
- Idzik M
- Jouan D
- Karavitcheva TL
- Kluberg L
- Kurepin AB
- Le Bornec Y
- Lourenco C
- Macciotta P
- Mac Cormick M
- Marzair Chiesa A
- Masera M
- Masoni A
- Monteno M
- Musso A
- Petiau P
- Piccotti A
- Pizzi JR
- da Silva WP
- Prino F
- PUDDU, GIOVANNA
- Quintans C
- Ramello L
- Ramos S
- Mendes PR
- Riccati L
- Romana A
- Santos H
- Saturnini P
- Scalas E
- Scomparin E
- Serci S
- Shahoyan R
- Sigaudo F
- Sitta M
- Sonderegger P
- Tarrago X
- Topilskaya NS
- USAI, GIANLUCA
- Vercellin E
- Villatte L
- Willis N.
DOIAbstract
Charmonium production in p-A collisions is a unique tool for the study of the interaction of bound c (c) over bar states in nuclear matter, It can provide details on the basic features of the resonance formation mechanism and, in particular, on its non-perturbative aspects. In this Letter, we present an experimental study of charmonia and Drell-Yan production in proton-nucleus collisions at 450 GeV/c. The results are analyzed in the framework of the Glauber model and lead to the values of the nuclear absorption cross-section sigma(pA)(abs) for J/psi and psi'. Then, we compare the J/psi absorption in proton-nucleus and sulphur-uranium interactions, using NA38 data. We obtain that, for the J/psi, sigma(pA)(abs) and sigma(SU)(abs) are compatib...
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