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Title: Essential elements for nuclear binding

Abstract

How does nuclear binding emerge from first principles? Our current best understanding of nuclear forces is based on a systematic low-energy expansion called chiral effective field theory. However, recent ab initio calculations of nuclear structure have found that not all chiral effective field theory interactions give accurate predictions with increasing nuclear density. In this letter we address the reason for this problem and the first steps toward a solution. Using nuclear lattice simulations, we deduce the minimal nuclear interaction that can reproduce the ground state properties of light nuclei, medium-mass nuclei, and neutron matter simultaneously with no more than a few percent error in the energies and charge radii. We find that only four parameters are needed. With these four parameters one can accurately describe neutron matter up to saturation density and the ground state properties of nuclei up to calcium. Given the absence of sign oscillations in these lattice Monte Carlo simulations and the mild scaling of computational effort scaling with nucleon number, this work provides a pathway to high-quality simulations in the future with as many as one or two hundred nucleons.

Authors:
; ; ORCiD logo; ORCiD logo; ; ORCiD logo
Publication Date:
Research Org.:
Michigan State Univ., East Lansing, MI (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1557875
Alternate Identifier(s):
OSTI ID: 1803440
Grant/Contract Number:  
SC0018638; AC52-06NA25396
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 797 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; Physics

Citation Formats

Lu, Bing-Nan, Li, Ning, Elhatisari, Serdar, Lee, Dean, Epelbaum, Evgeny, and Meißner, Ulf-G. Essential elements for nuclear binding. Netherlands: N. p., 2019. Web. doi:10.1016/j.physletb.2019.134863.
Lu, Bing-Nan, Li, Ning, Elhatisari, Serdar, Lee, Dean, Epelbaum, Evgeny, & Meißner, Ulf-G. Essential elements for nuclear binding. Netherlands. https://doi.org/10.1016/j.physletb.2019.134863
Lu, Bing-Nan, Li, Ning, Elhatisari, Serdar, Lee, Dean, Epelbaum, Evgeny, and Meißner, Ulf-G. Tue . "Essential elements for nuclear binding". Netherlands. https://doi.org/10.1016/j.physletb.2019.134863.
@article{osti_1557875,
title = {Essential elements for nuclear binding},
author = {Lu, Bing-Nan and Li, Ning and Elhatisari, Serdar and Lee, Dean and Epelbaum, Evgeny and Meißner, Ulf-G.},
abstractNote = {How does nuclear binding emerge from first principles? Our current best understanding of nuclear forces is based on a systematic low-energy expansion called chiral effective field theory. However, recent ab initio calculations of nuclear structure have found that not all chiral effective field theory interactions give accurate predictions with increasing nuclear density. In this letter we address the reason for this problem and the first steps toward a solution. Using nuclear lattice simulations, we deduce the minimal nuclear interaction that can reproduce the ground state properties of light nuclei, medium-mass nuclei, and neutron matter simultaneously with no more than a few percent error in the energies and charge radii. We find that only four parameters are needed. With these four parameters one can accurately describe neutron matter up to saturation density and the ground state properties of nuclei up to calcium. Given the absence of sign oscillations in these lattice Monte Carlo simulations and the mild scaling of computational effort scaling with nucleon number, this work provides a pathway to high-quality simulations in the future with as many as one or two hundred nucleons.},
doi = {10.1016/j.physletb.2019.134863},
journal = {Physics Letters B},
number = C,
volume = 797,
place = {Netherlands},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.physletb.2019.134863

Citation Metrics:
Cited by: 10 works
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