Nuclear matter properties with nucleon-nucleon forces up to fifth order in the chiral expansion
Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
The properties of nuclear matter are studied using state-of-the-art nucleon-nucleon forces up to fifth order in chiral effective field theory. The equations of state of symmetric nuclear matter and pure neutron matter are calculated in the framework of the Brueckner-Hartree-Fock theory. We discuss in detail the convergence pattern of the chiral expansion and the regulator dependence of the calculated equations of state and provide an estimation of the truncation uncertainty. For all employed values of the regulator, the fifth-order chiral two-nucleon potential is found to generate nuclear saturation properties similar to the available phenomenological high precision potentials. We also extract the symmetry energy of nuclear matter, which is shown to be quite robust with respect to the chiral order and the value of the regulator.
Description
CITATION: Hu, J., et al. 2017. Nuclear matter properties with nucleon-nucleon forces up to fifth order in the chiral expansion. Physical Review C, 96(3):1-7, doi:10.1103/PhysRevC.96.034307.
The original publication is available at https://journals.aps.org/prc
The original publication is available at https://journals.aps.org/prc
Keywords
Nuclear physics -- Research, Brueckner-Hartree-Fock theory, Nuclear matter, Nuclear force, Particles (Nuclear physics) -- Chirality
Citation
Hu, J., et al. 2017. Nuclear matter properties with nucleon-nucleon forces up to fifth order in the chiral expansion. Physical Review C, 96(3):1-7, doi:10.1103/PhysRevC.96.034307