Imposing multi-physics constraints at different densities on the neutron Star Equation of State
- Neutron star matter spans a wide range of densities, from that of nuclei at the surface to exceeding several times normal nuclear matter density in the core. While terrestrial experiments, such as nuclear or heavy-ion collision experiments, provide clues about the behaviour of dense nuclear matter, one must resort to theoretical models of neutron star matter to extrapolate to higher density and finite neutron/proton asymmetry relevant for neutron stars. In this work, we explore the parameter space within the framework of the Relativistic Mean Field model allowed by present uncertainties compatible with state-of-the-art experimental data. We apply a cut-off filter scheme to constrain the parameter space using multi-physics constraints at different density regimes: chiral effective field theory, nuclear and heavy-ion collision data as well as multi-messenger astrophysical observations of neutron stars. Using the results of the study, we investigate possible correlations between nuclear and astrophysical observables.
Author: | Suprovo GhoshORCiD, Debarati ChatterjeeORCiDGND, Jürgen Schaffner-BielichORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-695254 |
DOI: | https://doi.org/10.1140/epja/s10050-022-00679-w |
ISSN: | 1434-601X |
Parent Title (English): | The European physical journal A |
Publisher: | Springer |
Place of publication: | Berlin ; Heidelberg |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2022/02/28 |
Date of first Publication: | 2022/02/28 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2023/07/06 |
Volume: | 58 |
Issue: | 3, art. 37 |
Article Number: | 37 |
Page Number: | 18 |
First Page: | 1 |
Last Page: | 18 |
Note: | Open Access funding enabled and organized by Projekt DEAL. |
HeBIS-PPN: | 512611947 |
Institutes: | Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |