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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3451
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dc.contributor.authorChandra, Vinod-
dc.contributor.authorKumar, Ravindra-
dc.contributor.authorRavishankar, V.-
dc.date.accessioned2008-03-19T06:17:33Z-
dc.date.available2008-03-19T06:17:33Z-
dc.date.issued2007-11-
dc.identifier.citationPhysical Review C, 2007, Vol.76, 054909en
dc.identifier.issnE-ISSN: 1089-490X-
dc.identifier.issnP-ISSN: 0556-2813-
dc.identifier.urihttp://hdl.handle.net/2289/3451-
dc.descriptionOpen Access.en
dc.description.abstractWe study two recently proposed equations of state obtained from high-temperature QCD and show how they can be adapted to use them for making predictions for relativistic heavy ion collisions. The method involves extracting equilibrium distribution functions for quarks and gluons from the equation of state (EOS), which in turn will allow a determination of the transport and other bulk properties of the quark gluon-plasma. Simultaneously, the method also yields a quasiparticle description of interacting quarks and gluons. The first EOS is perturbative in the QCD coupling constant and has contributions of O(g5). The second EOS is an improvement over the first, with contributions up to O[g6ln(1/g)]; it incorporates the nonperturbative hard thermal contributions. The interaction effects are shown to be captured entirely by the effective chemical potentials for the gluons and the quarks, in both cases. The chemical potential is seen to be highly sensitive to the EOS. As an application, we determine the screening lengths, which are, indeed, the most important diagnostics for QGP. The screening lengths are seen to behave drastically differently depending on the EOS considered and therefore yield a way to distinguish the two equations of state in heavy ion collisions.en
dc.format.extent23045 bytes-
dc.format.extent567735 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe American Physical Societyen
dc.relation.urihttp://arxiv.org/abs/arXiv:0705.2690en
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevC.76.054909en
dc.rights2007 The American Physical Society.en
dc.titleHot QCD equations of state and relativistic heavy ion collisionsen
dc.typeArticleen
Appears in Collections:Research Papers (LAMP)

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