Nonsaturation of the J/ψ suppression at large transverse energy in the comovers approach

被引：127

作者：

Capella, A

Ferreiro, EG

Kaidalov, AB

机构：

[1] Univ Paris Sud, Phys Theor Lab, CNRS, UMR 8627, F-91405 Orsay, France

[2] Inst Theoret & Expt Phys, Moscow 117259, Russia

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.85.2080

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that, contrary to recent claims, the J/psi suppression resulting from its interaction with comovers does not saturate at large transverse energy E-T. On the contrary, it shows a characteristic structure-a change of curvature near the knee of the E-T distriblution-which is due to the E-T (or multiplicity) fluctuation. This change of curvature is also present in recent experimental results, although the experimental effect is larger than in our calculation.

引用

页码：2080 / 2083

页数：4

共 36 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] Observation of a threshold effect in the anomalous J/ψ suppression [J].

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 .

PHYSICS LETTERS B, 1999, 450 (04) :456-466

[3] Charmonium suppression in lead-lead collisions:: Is there a break in the J/ψ cross section? [J].

Armesto, N ;

Capella, A ;

Ferreiro, EG .

PHYSICAL REVIEW C, 1999, 59 (01) :395-404

[4] A quantitative reanalysis of charmonium suppression in nuclear collisions [J].

Armesto, N ;

Capella, A .

PHYSICS LETTERS B, 1998, 430 (1-2) :23-31

[5] Percolation approach to quark-gluon plasma and J/Psi suppression [J].

Armesto, N ;

Braun, MA ;

Ferreiro, EG ;

Pajares, C .

PHYSICAL REVIEW LETTERS, 1996, 77 (18) :3736-3738

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

Blaizot, JP ;

Ollitrault, JY .

PHYSICAL REVIEW LETTERS, 1996, 77 (09) :1703-1706

[7]

Capella A, 1999, ACTA PHYS HUNG NS-H, V9, P169

[8] PARTICLE DENSITIES IN S-S AND PB-PB COLLISIONS AT RHIC AND LHC ENERGIES IN THE DUAL PARTON MODEL [J].

CAPELLA, A ;

MERINO, C ;

VAN, JTT .

PHYSICS LETTERS B, 1991, 265 (3-4) :415-417

[9] J/psi and psi' suppression in heavy ion collisions [J].

Capella, A ;

Kaidalov, A ;

Akil, AK ;

Gerschel, C .

PHYSICS LETTERS B, 1997, 393 (3-4) :431-436

[10]

CASSING W, NUCLTH0001024

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