Anomalous suppression in PbPb interactions at 158 GeV/c per nucleon

Abreu, M.C.; Alessandro, B.; Alexa, C.; Astruc, J.; Baglin, C.; Baldit, A.; Bedjidian, M.; Bellaiche, F.; Beolè, S.; Boldea, V.; Bonazzola, G.C.; Bordalo, P.; Borhani, A.; Bussiére, A.; Capony, V.; Castor, J.; Chambon, T.; Chaurand, B.; Chevrot, I.; Cheynis, B.; Chiavassa, E.; Cicalò, C.; Constantinescu, S.; Cruz, J.; Dąbrowski, W.; Falco, A. De; Dellacasa, G.; Marco, N. De; Devaux, A.; Diţǎ, S.; Drapier, O.; Espagnon, B.; Fargeix, J.; Fleuret, F.; Force, P.; Gallio, M.; Gatignon, L.; Gavrilov, Y.K.; Gerschel, C.; Giubellino, P.; Golubeva, M.; Gonin, M.; Gorodetzky, P.; Grossiord, J.‐Y.; Guaita, P.; Guber, F.F.; Guichard, A.; Haroutunian, R.; Idzik, M.; Jouan, D.; Karavitcheva, T.L.; Kluberg, L.; Kurepin, A.; Landaud, G.; Lebornec, Y; Lourenço, C.; Luquin, L.; Macciotta, P.; Marzari‐Chiesa, A.; Masera, M.; Masoni, A.; Mourgues, S.; Musso, A.; Malek, F.; Petiau, P.; Piccotti, A.; Pizzi, J.R.; Silva, W.L. Prado Da; Puddu, G.; Quintans, C.; Racca, C.; Ramello, L.; Ramos, S.; Rato-Mendes, P.; Riccati, L.; Romana, A.; Sartori, Sabrina; Saturnini, P.; Scomparin, E.; Serci, S.; Silva, S.; Soave, C.; Sonderegger, P.; Tarrago, X.; Temnikov, P.; Topilskaya, N.; Usai, G. L.; Vale, C.; Vercellin, E.; Willis, N.

doi:10.1016/s0370-2693(97)00915-5

Cited by 197 publications

(93 citation statements)

References 32 publications

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“…The multiplicity detector of the NA50 experiment, with its good granularity, allows to measure the charged particle multiplicity as a function of pseudorapidity, providing in particular the particle density at midrapidity. This observable gives information about initial conditions such as the energy density, whose knowledge is relevant for the interpretation of the anomalous J/ψ suppression, observed by the NA50 experiment in Pb-Pb collisions [1,2,3], in terms of the threshold for the creation of a new state of matter.…”

Section: Introductionmentioning

confidence: 99%

Pseudorapidity distributions of charged particles as a function of centrality in Pb–Pb collisions at 158 and 40 GeV per nucleon incident energy

Abreu

Alessandro

Alexa³

et al. 2002

Physics Letters B

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Section: Introductionmentioning

confidence: 99%

Pseudorapidity distributions of charged particles as a function of centrality in Pb–Pb collisions at 158 and 40 GeV per nucleon incident energy

Abreu

Alessandro

Alexa³

et al. 2002

Physics Letters B

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“…In most central collisions, the J/Ψ events are significantly suppressed with respect to what is expected from normal nuclear absorption as measured in lighter systems [2,3,4,5]. According to theoretical predictions made more than ten years ago by Matsui and Satz [6], this anomalous J/Ψ suppression could be a sign of the awaited formation of a quark-gluon plasma in nucleus-nucleus collisions at very high energy.…”

Section: Introductionmentioning

confidence: 80%

“…Very interesting results have been obtained recently by the NA50 experiment at CERN concerning J/Ψ production in Pb + Pb collisions at P/A = 158 GeV/c [1,2,3,4,5]. In most central collisions, the J/Ψ events are significantly suppressed with respect to what is expected from normal nuclear absorption as measured in lighter systems [2,3,4,5].…”

Section: Introductionmentioning

confidence: 94%

“…In the usual presentation of NA50 results concerning J/Ψ production in nucleus-nucleus collisions [1,2,3,4], the ratio between J/Ψ and Drell-Yan events is plotted as a function of the transverse energy E T measured in an electromagnetic calorimeter. This centrality variable is aimed primarily at sorting out all events according to the impact parameter of the collision.…”

Section: Usual Data Presentationmentioning

confidence: 99%

“…The inclusive cross section is only available with arbitrary units in the thesis. A normalization factor had to be introduced to get the (b 2 ) e values in units of fm 2 . It has been adjusted in such a way that the dependence of (b 2 ) e upon E T agrees with the correlation between the average values of E T and b listed in NA50 publications [1,5] for successive E T slices, as fitted on the basis of a Glauber model calculation.…”

Section: Applicationmentioning

confidence: 99%

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Another look at anomalous J/$Psi; suppression in Pb + Pb collisions at P/A = 158 GeV/c

GOSSET¹

1999

Nuclear Physics A

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Abstract.A new data presentation is proposed in order to consider anomalous J/Ψ suppression in Pb + Pb collisions at P/A = 158 GeV/c. If the inclusive differential cross section with respect to a centrality variable is available, one can plot the yield of J/Ψ events per Pb-Pb collision as a function of an estimated squared impact parameter. Both quantities are raw experimental data and have a clear physical meaning. As compared to the usual J/Ψ over Drell-Yan ratio, there is a huge gain in statistical accuracy. This presentation could be applied advantageously to many processes in the field of nucleus-nucleus collisions at various energies.

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Color Deconfinement and Charmonium Production in Nuclear Collisions

Kluberg

Satz

2010

Relativistic Heavy Ion Physics

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In statistical QCD, color deconfinement and the properties of the quark-gluon plasma determine the in-medium behavior of heavy quark bound states. In high energy nuclear collisions, charmonia probe the partonic medium produced in the early stages of the interaction. We survey the present theoretical status and provide a critical evaluation of the charmonium production measurements in experiments at the CERN-SPS and the BNL-RHIC.2

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Anomalous suppression in PbPb interactions at 158 GeV/c per nucleon

Cited by 197 publications

References 32 publications

Pseudorapidity distributions of charged particles as a function of centrality in Pb–Pb collisions at 158 and 40 GeV per nucleon incident energy

Pseudorapidity distributions of charged particles as a function of centrality in Pb–Pb collisions at 158 and 40 GeV per nucleon incident energy

Another look at anomalous J/$Psi; suppression in Pb + Pb collisions at P/A = 158 GeV/c

Color Deconfinement and Charmonium Production in Nuclear Collisions

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