Details

Autor(en) / Beteiligte

• Kurepin, A.B.
• Alessandro, B.
• Alexa, C.
• Arnaldi, R.
• Atayan, M.
• Beolè, S.
• Boldea, V.
• Bordalo, P.
• Borges, G.
• Castanier, C.
• Castor, J.
• Chaurand, B.
• Cheynis, B.
• Chiavassa, E.
• Cicalo, C.
• Comets, M.P.
• Constantinescu, S.
• Cortese, P.
• De Falco, A.
• De Marco, N.
• Dellacasa, G.
• Devaux, A.
• Dita, S.
• Fargeix, J.
• Force, P.
• Gallio, M.
• Gerschel, C.
• Giubellino, P.
• Golubeva, M.B.
• Grigorian, A.A.
• Grigorian, S.
• Guber, F.F.
• Guichard, A.
• Gulkanyan, H.
• Idzik, M.
• Jouan, D.
• Karavitcheva, T.L.
• Kluberg, L.
• Le Bornec, Y.
• Lourenço, C.
• Mac Cormick, M.
• Marzari-Chiesa, A.
• Masera, M.
• Masoni, A.
• Monteno, M.
• Musso, A.
• Petiau, P.
• Piccotti, A.
• Pizzi, J.R.
• Prino, F.
• Puddu, G.
• Quintans, C.
• Ramello, L.
• Ramos, S.
• Riccati, L.
• Santos, H.
• Saturnini, P.
• Scomparin, E.
• Serci, S.
• Shahoyan, R.
• Sigaudo, F.
• Sitta, M.
• Sonderegger, P.
• Tarrago, X.
• Topilskaya, N.S.
• Usai, G.L.
• Vercellin, E.
• Villatte, L.
• Willis, N.
• Wu, T.

Titel

Transverse momentum dependence of charmonium suppression in Pb-Pb collisions at the CERN SPS

Ist Teil von

• Nuclear Physics A, 2005, Vol.749, p.243-250

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2005

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Charmonium suppression in Pb-Pb collisions at 158 GeV/c per nucleon is investigated in detail with the study of the transverse momentum distributions of J/ ψ as a function of the centrality of the collision. It is shown that the observed J/ ψ suppression in Pb-Pb interactions is particularly significant mainly at low transverse momentum where it strongly depends on centrality. For peripheral Pb-Pb collisions, the transverse momentum dependence of the J/ ψ cross section is, as a function of centrality, qualitatively similar to the dependence observed in p-A and S-U collisions. Comparing peripheral and central Pb-Pb collisions, the data show a relative suppression in the whole p T range although its amplitude significantly decreases with increasing p T and becomes almost p T independent for the highest p T values.