Journal Article

GSI-2026-00010

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Simultaneous description of high density QCD matter in heavy ion collisions and neutron star observations

Steinheimer, J. (Corresponding author)GSI* ; Kuttan, M. O.FIAS* ; Reichert, T.FIAS* ; Nara, Y. ; Bleicher, M.GSI*

2025
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.physletb.2025.139605  doi:10.15120/GSI-2026-00010

Abstract: 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.

Note: Funded by SCOAP3. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Contributing Institute(s):

1. Heiße & Dichte QCD Materie (TES)
2. Helmholtz ForschAkad Hess. f. FAIR, HFHF (FHF)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. SUC-GSI-Frankfurt - Strategic university cooperation GSI-U Frankfurt/M (SUC-GSI-FR) (SUC-GSI-FR)
3. FIAS - Frankfurt Institute for Advanced Studies (FIAS) (FIAS)
4. Physics of hot and dense matter - Theory (HFHF project) (I:(DE-Ds200)HFHF-HI-Th) (I:(DE-Ds200)HFHF-HI-Th)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2025

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Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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