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Titolo:
KAON INTERFEROMETRY AS SIGNAL FOR THE QCD PHASE-TRANSITION AT RHIC
Autore:
BERNARD S; RISCHKE DH; MARUHN JA; GREINER W;
Indirizzi:
UNIV FRANKFURT,INST THEORET PHYS,ROBERT MAYER STR 10 D-60054 FRANKFURT GERMANY DUKE UNIV,DEPT PHYS DURHAM NC 27708
Titolo Testata:
Nuclear physics. A
fascicolo: 1-2, volume: 625, anno: 1997,
pagine: 473 - 493
SICI:
0375-9474(1997)625:1-2<473:KIASFT>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; RELATIVISTIC NUCLEAR COLLISIONS; BOSE-EINSTEIN CORRELATIONS; PION INTERFEROMETRY; SOURCE PARAMETERS; FREEZE-OUT; HYDRODYNAMICS; MODEL; EXPANSION;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
47
Recensione:
Indirizzi per estratti:
Citazione:
S. Bernard et al., "KAON INTERFEROMETRY AS SIGNAL FOR THE QCD PHASE-TRANSITION AT RHIC", Nuclear physics. A, 625(1-2), 1997, pp. 473-493

Abstract

Pion and kaon correlations in relativistic nuclear collisions are studied in the framework of boost-invariant, cylindrically symmetric hydrodynamics, It is investigated how the inverse widths, R-out, R-side, Of the two-particle correlation functions in out-and side-direction depend on the average transverse momentum K-perpendicular to of the particle pair, the initial energy density epsilon(0), and the equation of state of the system. The QCD transition leads to a time delay in the expansion of the system and consequently to an enhancement of the ratio R-out/R-side. This time-delay signal is found to be particularly strong for large average transverse momenta K-perpendicular to similar to 1GeV and initial energy densities accessible at RHIC, epsilon(0) similar to 10-20 GeV fm(-3). Neutral kaon pair correlation functions, whichare not influenced by final state Coulomb effects and less contaminated by resonance decays than pion correlation functions, seem to be theideal tool to detect this collective time-delay signature of the QCD transition. (C) 1997 Elsevier Science B.V.

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Documento generato il 10/07/20 alle ore 00:22:48