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Titolo:
Chemical equilibration of quarks and gluons at RHIC and LHC energies
Autore:
Elliott, DM; Rischke, DH;
Indirizzi:
Univ Cape Town, Dept Phys, ZA-7701 Rondebosch, South Africa Univ Cape Town Rondebosch South Africa ZA-7701 Rondebosch, South Africa Brookhaven Natl Lab, RIKEN, Res Ctr, Upton, NY 11973 USA Brookhaven Natl Lab Upton NY USA 11973 IKEN, Res Ctr, Upton, NY 11973 USA
Titolo Testata:
NUCLEAR PHYSICS A
fascicolo: 1-4, volume: 671, anno: 2000,
pagine: 583 - 608
SICI:
0375-9474(20000522)671:1-4<583:CEOQAG>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; NUCLEUS-NUCLEUS COLLISIONS; PARTICLE-PRODUCTION; FLAVOR KINETICS; PLASMA; STRANGENESS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Elliott, DM Univ Cape Town, Dept Phys, ZA-7701 Rondebosch, South Africa Univ Cape Town Rondebosch South Africa ZA-7701 South Africa
Citazione:
D.M. Elliott e D.H. Rischke, "Chemical equilibration of quarks and gluons at RHIC and LHC energies", NUCL PHYS A, 671(1-4), 2000, pp. 583-608

Abstract

We study chemical equilibration of quarks and gluons in central nuclear collisions at RHIC and LHC energies. The initial quark and gluon densities are taken from earlier studies as well as from recent perturbative QCD estimates and are then evolved via rate equations coupled to longitudinally boost-invariant fluid dynamics. We find that, for RHIC initial conditions, the lifetime of quark-gluon matter is too short in order for the quark and gluonnumber densities to chemically equilibrate prior to hadronization. In contrast, at LHC energies chemical equilibration is complete before the system hadronizes. Entropy production due to chemical equilibration can be as large as 30%. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 15/07/20 alle ore 19:38:06