Chemical equilibration of partons in high-energy heavy-ion collisions?

Geiger, Klaus; Kapusta, Joseph I.

doi:10.1103/physrevd.47.4905

Cited by 105 publications

(137 citation statements)

References 33 publications

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“…Conventional calculations based on boost-invariant hydrodynamics with rate-equations for quark production [16,17,18], pQCD rate-equations [19] or the Parton Cascade Model [20] all indicate that chemical equilibration (and strangeness saturation) cannot be achieved during realistic life-times of the deconfined phase. It has been suggested (e.g.…”

Section: Hadron Yields and Ratiosmentioning

confidence: 99%

SQM 2006: theory summary and perspectives

Bass¹

2006

J. Phys. G: Nucl. Part. Phys.

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Section: Hadron Yields and Ratiosmentioning

confidence: 99%

SQM 2006: theory summary and perspectives

Bass¹

2006

J. Phys. G: Nucl. Part. Phys.

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“…Does it attain chemical equilibration? This will depend on the time available [3][4][5] to the partonic system before it converts into a mixed phase. The time available for this is perhaps too short (3-5 fm/c) at the energies ( √ s ≤ 100 GeV/nucleon) to be reached at the Relativistic Heavy Ion Collider (RHIC).…”

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confidence: 99%

Chemical equilibration of an expanding quark-gluon plasma

1997

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The chemical equilibration of the parton distribution in collisions of two heavy nuclei at the CERN Large Hadron Collider is investigated. Initial conditions are obtained from a self-screened parton cascade calculation. The onset of transverse expansion of the system is found to impede the chemical equilibration. The system initially approaches chemical equilibrium, but then is driven away from it, when the transverse velocity becomes large. PACS: 25.75.Ld, 12.38.Mh Typeset using REVT E X 1

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“…This undersaturation of strangeness production in the PCM is most likely due to the limitation of the model to pQCD processes. Previous calculations based on pQCD rate-equations [33] or a very early implementation of the Parton Cascade Model [34] confirm this trend.…”

Section: Dynamics Of Strangeness Productionmentioning

confidence: 68%

Strangeness production at RHIC in the perturbative regime

Chang

Bass

Srivastava

2004

J. Phys. G: Nucl. Part. Phys.

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Abstract. We investigate strange quark production in Au-Au collisions at RHIC in the framework of the Parton Cascade Model(PCM). The yields of (anti-) strange quarks for three production scenarios -primary-primary scattering, full scattering, and full production -are compared to a proton-proton baseline. Enhancement of strange quark yields in central Au-Au collisions compared to scaled p-p collisions increases with the number of secondary interactions. The centrality dependence of strangeness production for the three production scenarios is studied as well. For all production mechanisms, the strangeness yield increases with (N part ) 4/3 . The perturbative QCD regime described by the PCM is able to account for up to 50% of the observed strangeness at RHIC.

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Chemical equilibration of partons in high-energy heavy-ion collisions?

Cited by 105 publications

References 33 publications

SQM 2006: theory summary and perspectives

SQM 2006: theory summary and perspectives

Chemical equilibration of an expanding quark-gluon plasma

Strangeness production at RHIC in the perturbative regime

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