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arxiv: 2501.12849 · v2 · pith:DUVMNVRH · submitted 2025-01-22 · hep-ph · nucl-th

Simultaneous description of high density QCD matter in heavy ion collisions and neutron star observations

Jan Steinheimer , Manjunath Omana Kuttan , Tom Reichert , Yasushi Nara , Marcus Bleicher This is my paper

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classification hep-ph nucl-th
keywords neutronstardensityequationheavystateallowsconstraint
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A combined constraint on the QCD equation of state, at high densities, from connecting neutron star observations to data from heavy ion reactions is presented. We use the Chiral Mean Field Model which can describe neutron star and iso-spin symmetric matter and allows the consistent calculation of the density and momentum dependent potentials of baryons which are then implemented in the UrQMD transport model. In contrast to previous studies, the same equation of state constrained from neutron star properties is also able to describe experimental observables in heavy ion reactions at the HADES experiment. Unlike many other approaches our results are not constraint to densities up to nuclear saturation or perturbative results which allows a continuous description of the equation of state over a large range in baryon density.

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Cited by 3 Pith papers

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