Bayesian inference of thermal effects in dense matter within the covariant density functional theory
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866911872285933568 |
|---|---|
| author | Raduta, Adriana R. Beznogov, Mikhail V. Oertel, Micaela |
| author_facet | Raduta, Adriana R. Beznogov, Mikhail V. Oertel, Micaela |
| contents | The high temperatures reached in a proto-neutron star or during the post-merger phase of a binary neutron star coalescence lead to non-negligible thermal effects on the equation of state (EOS) of dense nuclear matter. Here we study these effects within the covariant density functional theory employing the posteriors of a Bayesian inference, which encompasses a large sample of EOS models. Different densities and temperatures are considered. We find that for a number of quantities thermal effects are strongly correlated with the Dirac effective mass ($m^*$) of the nucleons and/or its logarithmic derivative as a function of density. These results can be explained within the low temperature approximation though they survive beyond this limit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_14593 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Bayesian inference of thermal effects in dense matter within the covariant density functional theory Raduta, Adriana R. Beznogov, Mikhail V. Oertel, Micaela Nuclear Theory The high temperatures reached in a proto-neutron star or during the post-merger phase of a binary neutron star coalescence lead to non-negligible thermal effects on the equation of state (EOS) of dense nuclear matter. Here we study these effects within the covariant density functional theory employing the posteriors of a Bayesian inference, which encompasses a large sample of EOS models. Different densities and temperatures are considered. We find that for a number of quantities thermal effects are strongly correlated with the Dirac effective mass ($m^*$) of the nucleons and/or its logarithmic derivative as a function of density. These results can be explained within the low temperature approximation though they survive beyond this limit. |
| title | Bayesian inference of thermal effects in dense matter within the covariant density functional theory |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2402.14593 |