Nuclear-matter saturation and symmetry energy within $Δ$--full chiral effective field theory
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866929386814439424 |
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| author | Jiang, W. G. Forssén, C. Djärv, T. Hagen, G. |
| author_facet | Jiang, W. G. Forssén, C. Djärv, T. Hagen, G. |
| contents | Nuclear saturation and the symmetry energy are key properties of low-energy nuclear physics that depend on fine details of the nuclear interaction. The equation-of-state around saturation is also an important anchor for extrapolations to higher densities and studies of neutron stars. Here we develop a unified statistical framework that uses realistic nuclear forces to link the theoretical modeling of finite nuclei and infinite nuclear matter. We construct fast and accurate emulators for nuclear-matter observables and employ an iterative history-matching approach to explore and reduce the enormous parameter domain of $Δ$-full chiral interactions. We perform rigorous uncertainty quantification and find that model calibration including \nuc{16}{O} observables gives saturation predictions that are more precise than those that only use few-body data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_13203 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Nuclear-matter saturation and symmetry energy within $Δ$--full chiral effective field theory Jiang, W. G. Forssén, C. Djärv, T. Hagen, G. Nuclear Theory Nuclear saturation and the symmetry energy are key properties of low-energy nuclear physics that depend on fine details of the nuclear interaction. The equation-of-state around saturation is also an important anchor for extrapolations to higher densities and studies of neutron stars. Here we develop a unified statistical framework that uses realistic nuclear forces to link the theoretical modeling of finite nuclei and infinite nuclear matter. We construct fast and accurate emulators for nuclear-matter observables and employ an iterative history-matching approach to explore and reduce the enormous parameter domain of $Δ$-full chiral interactions. We perform rigorous uncertainty quantification and find that model calibration including \nuc{16}{O} observables gives saturation predictions that are more precise than those that only use few-body data. |
| title | Nuclear-matter saturation and symmetry energy within $Δ$--full chiral effective field theory |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2212.13203 |