Di-nucleon structures in homogeneous nuclear matter based on two- and three-nucleon interactions

Abstract

We investigate homogeneous nuclear matter within the Brueckner-Hartree-Fock (BHF) approach in the limits of isospin-symmetric nuclear matter (SNM) as well as pure neutron matter at zero temperature. The study is based on realistic representations of the internucleon interaction as given by Argonne v18, Paris, Nijmegen I and II potentials, in addition to chiral N${}^3$LO interactions, including three-nucleon forces up to N${}^2$LO. Particular attention is paid to the presence of di-nucleon bound states structures in ${}^1{\text{S}}_0$ and ${}^3{\text{SD}}_1$ channels, whose explicit account becomes crucial for the stability of self-consistent solutions at low densities. A characterization of these solutions and associated bound states is discussed. We confirm that coexisting BHF single-particle solutions in SNM, at Fermi momenta in the range $0.13-0.3$~fm${}^{-1}$, is a robust feature under the choice of realistic internucleon potentials.

arXiv comment8 pages, 8 figures. Minor corrections. Published in EPJA

References in corpus (18)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Accurate Charge-Dependent Nucleon-Nucleon Potential at Fourth Order of Chiral Perturbation Theory
• Construction of high-quality Nucleon-Nucleon potential models
• Chiral three-nucleon forces and neutron matter
• Asymmetric Nuclear Matter from Extended Brueckner-Hartree-Fock Approach
• Crustal Entrainment and Pulsar Glitches
• Quantum Monte Carlo calculations of neutron matter with chiral three-body forces
• Density-dependent effective nucleon-nucleon interaction from chiral three-nucleon forces
• Spectra and binding energy predictions of chiral interactions for 7Li
• Symmetric nuclear matter with chiral three-nucleon forces in the self-consistent Green's functions approach
• Towards order-by-order calculations of the nuclear and neutron matter equations of state in chiral effective field theory
• Correlated density-dependent chiral forces for infinite matter calculations within the Green's function approach
• Saturation of nuclear matter and short-range correlations
• Nucleon effective masses within the Brueckner-Hartree-Fock theory: Impact on stellar neutrino emission
• Di-neutrons in neutron matter within Brueckner-Hartree-Fock approach
• Revisiting the Hugenholtz-Van Hove theorem in nuclear matter
• Low-density homogeneous symmetric nuclear matter: disclosing dinucleons in coexisting phases
• Single particle spectrum and binding energy of nuclear matter

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