Probing the QCD equation of state with thermal photons in nucleus-nucleus collisions at RHIC

dc.creatord'Enterria, David
dc.creatorPeressounko, Dmitri
dc.date2005-03-21
dc.date2006-02-09
dc.date.accessioned2026-07-07T12:25:35Z
dc.date.available2026-07-07T12:25:35Z
dc.descriptionThermal photon production at mid-rapidity in Au+Au reactions at $\sqrt{s_{NN}}$ = 200 GeV is studied in the framework of a 2D+1 hydrodynamical model that describes efficiently the bulk identified hadron spectra at RHIC. The combined thermal plus NLO pQCD photon spectrum is in good agreement with the yields measured by the PHENIX experiment for all Au+Au centralities. Within our model, we demonstrate that the correlation of the thermal photon slopes with the charged hadron multiplicity in each centrality bin provides direct empirical information on the underlying degrees of freedom and on the equation of state, $s(T)/T^3$, of the strongly interacting matter.
dc.descriptionVersion to appear in EPJ-C (extended discussion and refs. and a few corrections)
dc.identifierhttps://arxiv.org/abs/nucl-th/0503054
dc.identifierhttp://arxiv.org/abs/nucl-th/0503054
dc.identifierEur.Phys.J.C46:451-464,2006
dc.identifierdoi:10.1140/epjc/s2006-02504-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214654
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleProbing the QCD equation of state with thermal photons in nucleus-nucleus collisions at RHIC
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