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Title: Quantum Monte Carlo calculations of neutron matter with chiral three-body forces

Journal Article · · Physical Review C
 [1];  [2];  [3];  [1]
  1. Technische Univ. Darmstadt, Darmstadt (Germany); GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Guelph, Guelph, ON (Canada)

Chiral effective field theory (EFT) enables a systematic description of low-energy hadronic interactions with controlled theoretical uncertainties. For strongly interacting systems, quantum Monte Carlo (QMC) methods provide some of the most accurate solutions, but they require as input local potentials. We have recently constructed local chiral nucleon-nucleon (NN) interactions up to next-to-next-to-leading order (N2LO). Chiral EFT naturally predicts consistent many-body forces. In this paper, we consider the leading chiral three-nucleon (3N) interactions in local form. These are included in auxiliary field diffusion Monte Carlo (AFDMC) simulations. We present results for the equation of state of neutron matter and for the energies and radii of neutron drops. Specifically, we study the regulator dependence at the Hartree-Fock level and in AFDMC and find that present local regulators lead to less repulsion from 3N forces compared to the usual nonlocal regulators.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396; AC02-05CH11231
OSTI ID:
1329890
Alternate ID(s):
OSTI ID: 1236720
Report Number(s):
LA-UR-15-25564; PRVCAN
Journal Information:
Physical Review C, Vol. 93, Issue 2; ISSN 2469-9985
Publisher:
APSCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 119 works
Citation information provided by
Web of Science

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Cited By (25)

Symmetry Parameter Constraints from a Lower Bound on Neutron-matter Energy journal October 2017
The radius of the canonical-mass neutron star and chiral effective field theory journal January 2019
Uncertainties in constraining low-energy constants from 3H $ \beta$β decay journal August 2017
Local Nucleon-Nucleon and Three-Nucleon Interactions Within Chiral Effective Field Theory journal January 2020
From hadrons to quarks in neutron stars: a review journal March 2018
Strength of tensor forces from neutron drops in ab initio relativistic Brueckner-Hartree-Fock theory journal December 2019
Constraining the properties of dense matter and neutron stars by combining nuclear physics and gravitational waves from GW170817
  • Tews, I.; Margueron, J.; Reddy, S.
  • XIAMEN-CUSTIPEN WORKSHOP ON THE EQUATION OF STATE OF DENSE NEUTRON-RICH MATTER IN THE ERA OF GRAVITATIONAL WAVE ASTRONOMY, AIP Conference Proceedings https://doi.org/10.1063/1.5117799
conference January 2019
Confronting gravitational-wave observations with modern nuclear physics constraints journal June 2019
Neutron matter within QCD sum rules journal May 2018
Relativistic self-energy decomposition of nuclear symmetry energy and equation of state of neutron matter within QCD sum rules journal August 2019
Bayesian modeling of the nuclear equation of state for neutron star tidal deformabilities and GW170817 journal November 2019
Constraining the Speed of Sound inside Neutron Stars with Chiral Effective Field Theory Interactions and Observations journal June 2018
Nuclear matter properties from local chiral interactions with $Δ$ isobar intermediate states text January 2016
Symmetry Parameter Constraints From A Lower Bound On The Neutron-Matter Energy text January 2016
Perturbation Theory of Nuclear Matter with a Microscopic Effective Interaction text January 2017
Light-nuclei spectra from chiral dynamics text January 2017
From hadrons to quarks in neutron stars: a review text January 2017
Constraining the speed of sound inside neutron stars with chiral effective field theory interactions and observations text January 2018
Microscopically-based energy density functionals for nuclei using the density matrix expansion: Full optimization and validation text January 2018
Relativistic Brueckner-Hartree-Fock theory for neutron drops text January 2018
Single- and two-nucleon momentum distributions for local chiral interactions text January 2018
Few- and many-nucleon systems with semilocal coordinate-space regularized chiral two- and three-body forces text January 2018
Non-perturbative Extraction of the Effective Mass in Neutron Matter text January 2019
Relativistic self-energy decomposition of nuclear symmetry energy and equation of state of neutron matter within QCD sum rules text January 2019
Local nucleon-nucleon and three-nucleon interactions within chiral effective field theory text January 2020

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