| Pàgina inicial > Transverse momentum dependence of charmonium suppression in Pb-Pb collisions at the CERN SPS |
| Article | |
| Title | Transverse momentum dependence of charmonium suppression in Pb-Pb collisions at the CERN SPS |
| Author(s) | Alessandro, Bruno ; Alexa, C ; Arnaldi, R ; Atayan, M ; Beolè, S ; Boldea, V ; Bordalo, P ; Borges, G ; Castanier, C ; Castor, J ; Chaurand, B ; Cheynis, B ; Chiavassa, E ; Cicalò, C ; Comets, M P ; Constantinescu, S ; Cormick, M M ; 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 ; Gulkanian, H R ; Idzik, M ; Jouan, D ; Karavitcheva, T L ; Kluberg, L ; Kurepin, A B ; Le Bornec, Y ; Lourenço, C ; 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 |
| Affiliation | (INFN, Torino Univ, Italy) |
| Publication | 2005 |
| In: | Nucl. Phys. A 749 (2005) 243c-250c |
| In: | 18th Nuclear Physics Division Conference on Phase Transitions In Strongly Interacting Matter, Prague, Czech Republic, 23 - 29 Aug 2004, pp.243c-250c |
| DOI | 10.1016/j.nuclphysa.2004.12.046 |
| Subject category | Nuclear Physics |
| Accelerator/Facility, Experiment | CERN SPS ; NA50 |
| Abstract | 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/ psi as a function of the centrality of the collision. It is shown that the observed J/ psi 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/ psi 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/sub T/ range although its amplitude significantly decreases with increasing p/sub T/ and becomes almost p/sub T/ independent for the highest p/sub T/ values. |