Formation of quarkonium states at RHIC

被引:15
作者
Thews, RL [1 ]
Schroedter, M [1 ]
Rafelski, J [1 ]
机构
[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
关键词
D O I
10.1088/0954-3899/27/3/359
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
At RHIC the cross section for c (c) over bar production will be large enough such that approximately ten pairs will be produced in each central collision. If a region of deconfined quarks and gluons is subsequently formed, one would expect that the mobility of the charm quarks will enable them to form J/psi through 'off-diagonal' combinations, involving a quark and an antiquark which were originally produced in separate incoherent interactions. We present model estimates of this effect, which indicate that the signal for deconfinement at RHIC may possibly be J/psi enhancement rather than suppression.
引用
收藏
页码:715 / 722
页数:8
相关论文
共 14 条
[1]   Evidence for deconfinement of quarks and gluons from the J/ψ suppression pattern measured in Pb-Pb collisions at the CERN-SPS [J].
Abreu, MC ;
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 .
PHYSICS LETTERS B, 2000, 477 (1-3) :28-36
[2]  
BAIER R, 2000, HEPPH0002198
[3]   SHORT-DISTANCE ANALYSIS FOR HEAVY-QUARK SYSTEMS .2. APPLICATIONS [J].
BHANOT, G ;
PESKIN, ME .
NUCLEAR PHYSICS B, 1979, 156 (03) :391-416
[4]   MULTIPLICITY DISTRIBUTIONS IN NUCLEUS-NUCLEUS COLLISIONS AT HIGH-ENERGIES [J].
BIALAS, A ;
BLESZYNSKI, M ;
CZYZ, W .
NUCLEAR PHYSICS B, 1976, 111 (03) :461-476
[5]   Hadronization with a confining equation of state [J].
Biró, TS ;
Lévai, P ;
Zimányi, J .
PHYSICAL REVIEW C, 1999, 59 (03) :1574-1584
[6]   HIGHLY RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS - THE CENTRAL RAPIDITY REGION [J].
BJORKEN, JD .
PHYSICAL REVIEW D, 1983, 27 (01) :140-151
[7]   COMPARISON OF J/PSI-SUPPRESSION IN PHOTON, HADRON AND NUCLEUS-NUCLEUS COLLISIONS - WHERE IS THE QUARK-GLUON PLASMA [J].
GERSCHEL, C ;
HUFNER, J .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1992, 56 (01) :171-174
[8]   QUARKONIUM INTERACTIONS IN HADRONIC MATTER [J].
KHARZEEV, D ;
SATZ, H .
PHYSICS LETTERS B, 1994, 334 (1-2) :155-162
[9]  
MARGETIS S, 1995, NUCL PHYS A, V590, pC355
[10]   J-PSI-SUPPRESSION BY QUARK GLUON PLASMA FORMATION [J].
MATSUI, T ;
SATZ, H .
PHYSICS LETTERS B, 1986, 178 (04) :416-422