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Evidence for deconfinement of quarks and gluons from the J/ψ suppression pattern measured in Pb-Pb collisions at the CERN-SPS

被引：379
作者：
Abreu, MC [1 ]
Alessandro, B
Alexa, C
Arnaldi, R
Atayan, M
Baglin, C
Baldit, A
Bedjidian, M
Beolè, S
Boldea, V
Bordalo, P
Bussière, A
Capelli, L
Casagrande, L
Castor, J
Chambon, T
Chaurand, B
Chevrot, I
Cheynis, B
Chiavassa, EK
Cicalò, C
Comets, MP
Constans, N
Constantinescu, S
Cruz, J
De Falco, A
Dellacasa, G
De Marco, N
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
Grossiord, JY
Guber, FF
Guichard, A
Gulkanyan, H
Hakobyan, R
Haroutunian, R
Idzik, M
Jouan, D
机构：
[1] Univ Piemonte Orientale, Alessandria, Italy
[2] Ist Nazl Fis Nucl, I-10125 Turin, Italy
[3] CNRS, IN2P3, Phys Particules Lab, LAPP, Annecy Le Vieux, France
[4] Univ Blaise Pascal, CNRS, IN2P3, Phys Corpusculaire Lab, Aubiere, France
[5] Inst Atom Phys, IFA, R-76900 Bucharest, Romania
[6] Univ Cagliari, Ist Nazl Fis Nucl, Cagliari, Italy
[7] CERN, Geneva, Switzerland
[8] LIP, Lab Instrumentacao & Fis Particulas, Lisbon, Portugal
[9] Russian Acad Sci, Inst Nucl Res, Moscow, Russia
[10] Univ Paris Sud, CNRS, IN2P3, IPNO, Orsay, France
[11] Ecole Polytech, CNRS, IN2P3, LPNHE, F-91128 Palaiseau, France
[12] Univ Turin, Ist Nazl Fis Nucl, Turin, Italy
[13] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France
[14] Yerevan Phys Inst, Yerevan 375036, Armenia
来源：
PHYSICS LETTERS B | 2000年 / 477卷 / 1-3期
关键词：
D O I：
10.1016/S0370-2693(00)00237-9
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The analysis of the data collected by the NA50 experiment in 1998, reported in this paper, extends and clarifies the pattern of the previously observed J/psi, anomalous suppression. This new measurement, besides providing a deeper understanding of the previous observations, reveals a steady significative decrease in the J/psi production rate up to the most central Pb-Pb collisions. It clearly rules out the presently available conventional (hadronic) models of J/psi suppression, which unanimously predict a saturation of the J/psi rate for central Pb-Pb collisions. On the contrary and together with the sharp onset of the anomalous suppression previously reported, the new observation leads to a global production rate pattern which finds its natural explanation in the framework of the formation of a deconfined state of quarks and gluons. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：28 / 36
页数：9
相关论文
共 24 条
  • [1] J/ψ, ψ′ and Drell-Yan production in S-U interactions at 200 GeV per nucleon
    Abreu, MC
    Astruc, J
    Baglin, C
    Baldit, A
    Bedjidian, M
    Bordalo, P
    Bohrani, A
    Bussière, A
    Busson, P
    Castor, J
    Chambon, T
    Charlot, C
    Chaurand, B
    Chevrot, I
    Contardo, D
    Descroix, E
    Devaux, A
    Drapier, O
    Espagnon, B
    Fargeix, J
    Ferreira, R
    Fleuret, F
    Force, P
    Gago, J
    Gerschel, C
    Gorodetzky, P
    Grossiord, JY
    Guichard, A
    Guillaud, JP
    Haroutunian, R
    Jouan, D
    Kluberg, L
    Kossakowski, R
    Landaud, G
    Lourenço, C
    Luquin, L
    Mandry, R
    Mourgues, S
    Ohlsson-Malek, F
    Papillon, S
    Pizzi, JR
    Racca, C
    Ramos, S
    Romana, A
    Ronceux, B
    Saturnini, P
    Silva, S
    Sonderegger, P
    Tarrago, X
    Varela, J
    [J]. PHYSICS LETTERS B, 1999, 449 (1-2) : 128 - 136
  • [2] Charmonia production in 450 GeV/c proton induced reactions
    Abreu, MC
    Baglin, C
    Baldit, A
    Bedjidian, M
    Bordalo, P
    Bussière, A
    Busson, P
    Castor, J
    Chambon, T
    Charlot, C
    Chaurand, B
    Contardo, D
    Descroix, E
    Devaux, A
    Drapier, O
    Espagnon, B
    Fargeix, J
    Ferreira, R
    Fleuret, F
    Force, P
    Fredj, L
    Gago, J
    Gerschel, C
    Gorodetzky, P
    Grossiord, JY
    Guichard, A
    Guillaud, JP
    Haroutunian, R
    Jouan, D
    Kluberg, L
    Kossakowski, R
    Landaud, G
    Lourenço, C
    Mandry, R
    Ohlsson-Malek, F
    Pizzi, JR
    Racca, C
    Ramos, S
    Romana, A
    Saturnini, P
    Silva, S
    Sonderegger, P
    Tarrago, X
    Varela, J
    Vazeille, F
    [J]. PHYSICS LETTERS B, 1998, 444 (3-4) : 516 - 522
  • [3] J/ψ, ψ′ and Drell-Yan production in pp and pd interactions at 450 GeV/c
    Abreu, MC
    Alessandro, B
    Baldit, A
    Barriere, C
    Bedjidian, M
    Bordalo, P
    Castor, J
    Chambon, T
    Chaurand, B
    Chiavassa, E
    Contardo, D
    Dellacasa, G
    De Marco, N
    Descroix, E
    Devaux, A
    Drapier, O
    Espagnon, B
    Fargeix, J
    Fleuret, F
    Ferreira, R
    Force, P
    Gago, J
    Gallio, M
    Gerschel, C
    Giubellino, P
    Gorodetzky, P
    Grossiord, JY
    Guaita, P
    Guichard, A
    Haroutunian, R
    Jouan, D
    Kluberg, L
    Landaud, G
    Lazic, D
    Lourenco, C
    Mandry, R
    Marzari-Chiesa, A
    Masera, M
    Monteno, M
    Musso, A
    Ohlsson-Malek, F
    Piccotti, A
    Pizzi, JR
    Racca, C
    Ramello, L
    Ramos, S
    Riccati, L
    Romana, A
    Saturnini, P
    Scomparin, E
    [J]. PHYSICS LETTERS B, 1998, 438 (1-2) : 35 - 40
  • [4] J/ψ and ψ′ production in p, O and S induced reactions at SPS energies
    Abreu, MC
    Astruc, J
    Baglin, C
    Baldit, A
    Bedjidian, M
    Bordalo, P
    Bohrani, A
    Bussière, A
    Busson, P
    Castor, J
    Chambon, T
    Charlot, C
    Chaurand, B
    Chevrot, I
    Contardo, D
    Descroix, E
    Devaux, A
    Drapier, O
    Espagnon, B
    Fargeix, J
    Ferreira, R
    Fleuret, F
    Force, P
    Fredj, L
    Gago, J
    Gerschel, C
    Corodetzky, P
    Grossiord, JY
    Guichard, A
    Guillaud, J
    Haroutunian, R
    Jouan, D
    Kluberg, L
    Kossakowski, R
    Landaud, G
    Lourenço, C
    Luquin, L
    Mandry, R
    Mourgues, S
    Ohlsson-Malek, F
    Papillon, S
    Pizzi, JR
    Racca, C
    Ramos, S
    Romana, A
    Ronceux, B
    Saturnini, P
    Silva, S
    Sonderegger, P
    Tarrago, X
    [J]. PHYSICS LETTERS B, 1999, 466 (2-4) : 408 - 414
  • [5] Observation of a threshold effect in the anomalous J/ψ suppression
    Abreu, MC
    Alessandro, B
    Alexa, C
    Arnaldi, R
    Astruc, J
    Atayan, M
    Baglin, C
    Baldit, A
    Bedjidian, M
    Bellaiche, F
    Beolè, S
    Boldea, V
    Bordalo, P
    Bussière, A
    Capony, V
    Casagrande, L
    Castor, J
    Chambon, T
    Chaurand, B
    Chevrot, I
    Cheynis, B
    Chiavassa, E
    Cicalò, C
    Comets, MP
    Constans, N
    Constantinescu, S
    Cruz, J
    De Falco, A
    Dellacasa, G
    De Marco, N
    Devaux, A
    Dita, S
    Drapier, O
    Espagnon, B
    Fargeix, J
    Filippov, SN
    Fleuret, F
    Force, P
    Gallio, M
    Gatignon, L
    Gavrilov, YK
    Gerschel, C
    Giubellino, P
    Golubeva, MB
    Gonin, M
    Grigorian, AA
    Grossiord, JY
    Guber, FF
    Guichard, A
    Gulkanyan, H
    [J]. PHYSICS LETTERS B, 1999, 450 (04) : 456 - 466
  • [6] Anomalous J/psi suppression in Pb-Pb interactions at 158 GeV/c per nucleon
    Abreu, MC
    Alessandro, B
    Alexa, C
    Astruc, J
    Baglin, C
    Baldit, A
    Bedjidian, M
    Bellaiche, F
    Beole, S
    Boldea, V
    Bonazzola, G
    Bordalo, P
    Borhani, A
    Bussiere, A
    Capony, V
    Castor, J
    Chambon, T
    Chaurand, B
    Chevrot, I
    Cheynis, B
    Chiavassa, E
    Cicalo, C
    Constantinescu, S
    Cruz, J
    Dabrowski, W
    DeFalco, A
    Dellacasa, G
    DeMarco, N
    Devaux, A
    Dita, S
    Drapier, O
    Espagnon, B
    Fargeix, J
    Fleuret, F
    Force, P
    Gallio, M
    Gatignon, L
    Gavrilov, YK
    Gerschel, C
    Giubellino, P
    Golubeva, MB
    Gonin, M
    Gorodetzky, P
    Grossiord, JY
    Guaita, P
    Guber, FF
    Guichard, A
    Haroutunian, R
    Idzik, M
    Jouan, D
    [J]. PHYSICS LETTERS B, 1997, 410 (2-4) : 337 - 343
  • [7] J/psi and Drell-Yan cross-sections in Pb-Pb interactions at 158 GeV/c per nucleon
    Abreu, MC
    Alessandro, B
    Alexa, C
    Astruc, J
    Baglin, C
    Baldit, A
    Bedjidian, M
    Bellaiche, F
    Beole, S
    Boldea, V
    Bonazzola, G
    Bordalo, P
    Borhani, A
    Bussiere, A
    Capony, V
    Castor, J
    Chambon, T
    Chaurand, B
    Chevrot, I
    Cheynis, B
    Chiavassa, E
    Cicalo, C
    Constantinescu, S
    Cruz, J
    Dabrowski, W
    DeFalco, A
    Dellacasa, G
    DeMarco, N
    Devaux, A
    Dita, S
    Drapier, O
    Espagnon, B
    Fargeix, J
    Fleuret, F
    Force, P
    Gallio, M
    Gatignon, L
    Gavrilov, YK
    Gerschel, C
    Giubellino, P
    Golubeva, MB
    Gonin, M
    Gorodetzky, P
    Grossiord, JY
    Guaita, P
    Guber, FF
    Guichard, A
    Haroutunian, R
    Idzik, M
    Jouan, D
    [J]. PHYSICS LETTERS B, 1997, 410 (2-4) : 327 - 336
  • [8] TRANSVERSE ENERGY-PRODUCTION IN PB-208+PB COLLISIONS AT 158 GEV PER NUCLEON
    ALBER, T
    APPELSHAUSER, H
    BACHLER, J
    BARTKE, J
    BIALKOWSKA, H
    BIESER, F
    BLOOMER, MA
    BLYTH, CO
    ROCK, R
    BORMANN, C
    BRADY, FP
    BROCKMANN, R
    BUNCIC, P
    CAINES, HL
    CEBRA, D
    CHAN, P
    COOPER, GE
    CRAMER, JG
    CRAMER, PB
    CSATO, P
    DERADO, I
    DUNN, J
    ECKARDT, V
    ECKHARDT, F
    EULER, S
    FERGUSON, MI
    FISCHER, HG
    FODOR, Z
    FOKA, P
    FREUND, P
    FUCHS, M
    GAL, J
    GAZDZICKI, M
    GLADYSZ, E
    GREBIESZKOW, J
    GUNTHER, J
    HARRIS, JW
    HECK, W
    HEGYI, S
    HILL, LA
    HUANG, I
    HOWE, MA
    IGO, G
    IRMSCHER, D
    JACOBS, P
    JONES, PG
    KADIJA, K
    KECSKEMETI, J
    KOWALSKI, M
    KUHMICHEL, A
    [J]. PHYSICAL REVIEW LETTERS, 1995, 75 (21) : 3814 - 3817
  • [9] [Anonymous], 1974, ATOM DATA NUCL DATA
  • [10] Charmonium suppression in lead-lead collisions:: Is there a break in the J/ψ cross section?
    Armesto, N
    Capella, A
    Ferreiro, EG
    [J]. PHYSICAL REVIEW C, 1999, 59 (01): : 395 - 404
123