Nuclear and neutron-star matter from local chiral interactions
Abstract
We report a quantum Monte Carlo calculation of the equation of state of symmetric nuclear matter using local interactions derived from chiral effective field theory up to next-to-next-to-leading order fit to few-body observables only. The empirical saturation density and energy are well reproduced within statistical and systematic uncertainties. We have also derived the symmetry energy as a function of the density, finding good agreement with available experimentally derived constraints at saturation and twice saturation density. We find that the corresponding pressure is also in excellent agreement with recent constraints extracted from gravitational waves of the neutron-star merger GW170817 by the LIGO-Virgo detection
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1617708
- Alternate Identifier(s):
- OSTI ID: 1659210
- Report Number(s):
- LA-UR-19-32538
Journal ID: ISSN 2643-1564; PPRHAI; 022033
- Grant/Contract Number:
- SC0013617; AC52-06NA25396; AC02-05CH11231; 89233218CNA000001
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Research
- Additional Journal Information:
- Journal Name: Physical Review Research Journal Volume: 2 Journal Issue: 2; Journal ID: ISSN 2643-1564
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Atomic; Nuclear and Particle Physics
Citation Formats
Lonardoni, D., Tews, I., Gandolfi, S., and Carlson, J. Nuclear and neutron-star matter from local chiral interactions. United States: N. p., 2020.
Web. doi:10.1103/PhysRevResearch.2.022033.
Lonardoni, D., Tews, I., Gandolfi, S., & Carlson, J. Nuclear and neutron-star matter from local chiral interactions. United States. https://doi.org/10.1103/PhysRevResearch.2.022033
Lonardoni, D., Tews, I., Gandolfi, S., and Carlson, J. Thu .
"Nuclear and neutron-star matter from local chiral interactions". United States. https://doi.org/10.1103/PhysRevResearch.2.022033.
@article{osti_1617708,
title = {Nuclear and neutron-star matter from local chiral interactions},
author = {Lonardoni, D. and Tews, I. and Gandolfi, S. and Carlson, J.},
abstractNote = {We report a quantum Monte Carlo calculation of the equation of state of symmetric nuclear matter using local interactions derived from chiral effective field theory up to next-to-next-to-leading order fit to few-body observables only. The empirical saturation density and energy are well reproduced within statistical and systematic uncertainties. We have also derived the symmetry energy as a function of the density, finding good agreement with available experimentally derived constraints at saturation and twice saturation density. We find that the corresponding pressure is also in excellent agreement with recent constraints extracted from gravitational waves of the neutron-star merger GW170817 by the LIGO-Virgo detection},
doi = {10.1103/PhysRevResearch.2.022033},
journal = {Physical Review Research},
number = 2,
volume = 2,
place = {United States},
year = {Thu May 07 00:00:00 EDT 2020},
month = {Thu May 07 00:00:00 EDT 2020}
}
https://doi.org/10.1103/PhysRevResearch.2.022033
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