J/psi suppression in Pb-Pb collisions: A hint of quark-gluon plasma production?

被引：195

作者：

Blaizot, JP

Ollitrault, JY

机构：

[1] CNRS, Service de Physique, CE-Saclay, Gif-sur-Yvette Cedex

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.77.1703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The NA50 Collaboration has recently observed a strong suppression of J/psi, production in Pb-Pb collisions at 158 GeV/nucleon. We show that this recent observation finds a quantitative explanation in a model which relates the suppression mechanism to the local energy density, whose value is higher in Pb-Pb collisions than in any other system studied previously. The sensitivity of the phenomenon to small changes in the energy density could be suggestive of quark-gluon plasma formation.

引用

页码：1703 / 1706

页数：4

共 18 条

[1] DISTRIBUTIONS OF TRANSVERSE ENERGY AND FORWARD ENERGY IN 0-16 INDUCED AND S-32-INDUCED HEAVY-ION COLLISIONS AT 60A AND 200A GEV [J].

ALBRECHT, R ;

AWES, TC ;

BAKTASH, C ;

BECKMANN, P ;

BERGER, F ;

BOCK, R ;

CLAESSON, G ;

CLEWING, G ;

DRAGON, L ;

EKLUND, A ;

FERGUSON, RL ;

FRANZ, A ;

GARPMAN, S ;

GLASGOW, R ;

GUSTAFSSON, HA ;

GUTBROD, HH ;

IDH, J ;

JACOBS, P ;

KAMPERT, KH ;

KOLB, BW ;

KRISTIANSSON, P ;

LEE, Y ;

LOEHNER, H ;

LUND, I ;

OBENSHAIN, FE ;

OSKARSSON, A ;

OTTERLUND, L ;

PERTZMANN, T ;

PERSSON, S ;

PLASIL, F ;

POSKANZER, AM ;

PURSCHKE, M ;

RITTER, HG ;

SAINI, S ;

SANTO, R ;

SCHMIDT, HR ;

SIEMIARCZUK, T ;

SORENSEN, SP ;

STENLUND, E ;

TINCKNELL, ML ;

YOUNG, GR .

PHYSICAL REVIEW C, 1991, 44 (06) :2736-2752

[2]

ALNER GJ, 1986, Z PHYS C PART FIELDS, V33, P1, DOI 10.1007/BF01410446

[3]

BACHLER J, 1991, Z PHYS C PART FIELDS, V52, P239, DOI 10.1007/BF01560442

[4] J/PSI AND MUON-PAIR CROSS-SECTIONS IN PROTON NUCLEUS AND NUCLEUS NUCLEUS COLLISIONS AT 200-GEV PER NUCLEON [J].

BAGLIN, C ;

BALDISSERI, A ;

BUSSIERE, A ;

GUILLAUD, JP ;

KOSSAKOWSKI, R ;

LIAUD, P ;

STALEY, F ;

BALDIT, A ;

CASTOR, J ;

CHAMBON, T ;

DEVAUX, A ;

FARGEIX, J ;

FELGEYROLLES, X ;

FORCE, P ;

FREDJ, L ;

LANDAUD, G ;

VAZEILLE, F ;

SONDEREGGER, P ;

ABREU, MC ;

BORDALO, P ;

FERREIRA, R ;

GAGO, JM ;

LOURENCO, C ;

PERALTA, L ;

RAMOS, S ;

SILVA, S ;

VARELA, J ;

GERSCHEL, C ;

JOUAN, D ;

PAPILLON, S ;

TARRAGO, X ;

BUSSON, P ;

CHARLOT, C ;

CHAURAND, B ;

KLUBERG, L ;

ROMANA, A ;

SALMERON, RA ;

GORODETZKY, P ;

GROSDIDIER, B ;

RACCA, C ;

CASES, R ;

ALIMI, M ;

BEDJIDIAN, M ;

CONTARDO, D ;

DESCROIX, E ;

DRAPIER, O ;

GROSSIORD, JY ;

GUICHARD, A ;

HAROUTUNIAN, R ;

PIZZI, JR .

PHYSICS LETTERS B, 1991, 270 (01) :105-110

[5] ON THE FATE OF A J/PSI PRODUCED IN A NUCLEUS-NUCLEUS COLLISION [J].

BLAIZOT, JP ;

OLLITRAULT, JY .

PHYSICAL REVIEW D, 1989, 39 (01) :232-249

[6]

BLAIZOT JP, 1990, QUARK GLUON PLASMA, P631

[7]

BLAIZOT JP, 1989, PHYS LETT B, V217, P232

[8]

BORDALO P, 1996, P RENC MOR 1996

[9] NUCLEAR EFFECTS IN J-PSI-SUPPRESSION [J].

CAPELLA, A ;

CASADO, JA ;

PAJARES, C ;

RAMALLO, AV ;

VAN, JTT .

PHYSICS LETTERS B, 1988, 206 (02) :354-360

[10]

FREDJ L, 1991, THESIS U BLAISE PASC

← 1 2 →