Electron-positron pairs from thermal resonances in ultrarelativistic nuclear collisions

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dc.creatorNeumann, John J.
dc.creatorSeibert, David
dc.creatorFai, George
dc.date1995-05-24
dc.date1995-11-16
dc.date.accessioned2026-07-07T11:15:21Z
dc.date.available2026-07-07T11:15:21Z
dc.descriptionWe use a boost-invariant one-dimensional (cylindrically symmetric) fluid dynamics code to calculate $e^+e^-$ production from $ρ^0$ and $ω$ decay in the central rapidity region of a central S+Au collision at $\sqrt{s}=20$ GeV/nucleon. We use equations of state with a first-order phase transition between a massless pion gas and quark gluon plasma, with transition temperatures in the range $150-200$ MeV. The production cross section at the $ρ$ mass loosely constrains the transition and freeze-out temperatures, and we find that the $m_T$ spectrum is a good thermometer for sufficiently high $T_c$.
dc.description11 pages RevTeX, 2 uuencoded figures. Numerical error corrected, figures and text updated to take this into account. To appear in Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-th/9505035
dc.identifierhttp://arxiv.org/abs/nucl-th/9505035
dc.identifierPhys.Rev.C53:14-17,1996
dc.identifierdoi:10.1103/PhysRevC.53.14
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192362
dc.subjectNuclear Theory
dc.titleElectron-positron pairs from thermal resonances in ultrarelativistic nuclear collisions
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