Tabulated equations of state from models informed by chiral effective field theory

Alford, M. G.; Brodie, L.; Haber, A.; Tews, I.

doi:10.1088/1402-4896/ad03c8

Tabulated equations of state from models informed by chiral effective field theory

Journal Article · Wed Nov 01 00:00:00 EDT 2023 · Physica Scripta

DOI:https://doi.org/10.1088/1402-4896/ad03c8· OSTI ID:2204424

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Abstract

We construct four equation of state (EoS) tables, tabulated over a range of temperatures, densities, and charge fractions, relevant for neutron star applications such as simulations of neutron star mergers. The EoS are computed from a relativistic mean-field theory constrained by the pure neutron matter EoS from chiral effective field theory, inferred properties of isospin-symmetric nuclear matter, and astrophysical observations of neutron star structure. To model nuclear matter at low densities, we attach an EoS that models inhomogeneous nuclear matter at arbitrary temperatures and charge fractions. The four EoS tables we develop are available from the CompOSE EoS repository https://compose.obspm.fr/eos/297 and gitlab.com/ahaber/qmc-rmf-tables .

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: 89233218CNA000001; AC52-06NA25396; FG02-05ER41375

OSTI ID:: 2204424

Alternate ID(s):: OSTI ID: 2202494
OSTI ID: 2205055

Report Number(s):: LA-UR--23-23837

Journal Information:: Physica Scripta, Journal Name: Physica Scripta Journal Issue: 12 Vol. 98; ISSN 0031-8949

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: Sweden

Language:: English

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Tabulated equations of state from models informed by chiral effective field theory

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