Effect of three-body forces on response functions in infinite neutron matter

Abstract

We study the impact of three-body forces on the response functions of cold neutron matter. These response functions are determined in the random phase approximation (RPA) from a residual interaction expressed in terms of Landau parameters. Special attention is paid to the non-central part, including all terms allowed by the relevant symmetries. Using Landau parameters derived from realistic nuclear two- and three-body forces grounded in chiral effective field theory, we find that the three-body term has a strong impact on the excited states of the system and in the static and long-wavelength limit of the response functions for which a new exact formula is established.

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Cited by in corpus (14)

• Equation of state of nuclear and neutron matter at third-order in perturbation theory from chiral EFT
• Neutron star crusts from mean field models constrained by chiral effective field theory
• Static Response of Neutron Matter
• Consolidating the concept of low-energy magnetic dipole decay radiation
• Solution of Hartree-Fock-Bogoliubov equations and fitting procedure using N2LO Skyrme pseudo-potential in spherical symmetry
• Microscopically constrained mean field models from chiral nuclear thermodynamics
• Ab initio and phenomenological studies of the static response of neutron matter
• Non-perturbative Extraction of the Effective Mass in Neutron Matter
• Tensor Fermi liquid parameters in nuclear matter from chiral effective field theory
• Satisfying the compressibility sum rule in neutron matter
• Nuclear response functions with finite range Gogny force: tensor terms and instabilities
• Neutron matter at the interface(s): static response and effective mass
• Skyrme-based extrapolation for the static response of neutron matter
• Chiral symmetry and effective field theories for hadronic, nuclear and stellar matter