Neutron-rich nuclei and neutron skins from chiral low-resolution interactions

Abstract

Neutron-rich nuclei provide important insights to nuclear forces and to the nuclear equation of state. Advances in ab initio methods combined with new opportunities with rare isotope beams enable unique explorations of their properties based on nuclear forces applicable over the entire nuclear chart. In this paper, we develop novel chiral low-resolution interactions that accurately describe bulk properties from ${}^{16}$O to ${}^{208}$Pb. With these, we investigate density distributions and neutron skins of neutron-rich nuclei. Our results show that neutron skins are narrowly predicted over all nuclei with interesting sensitivities for the most extreme, experimentally unexplored cases.

arXiv comment10 pages, 8 figures, 3 tables including appendices

References in corpus (61)

• Modern Theory of Nuclear Forces
• Accurate Charge-Dependent Nucleon-Nucleon Potential at Fourth Order of Chiral Perturbation Theory
• Accurate Determination of the Neutron Skin Thickness of ${}^{208}$Pb through Parity-Violation in Electron Scattering
• Improved nuclear matter calculations from chiral low-momentum interactions
• Coupled-cluster computations of atomic nuclei
• Complete electric dipole response and the neutron skin in 208Pb
• Constraining the Symmetry Parameters of the Nuclear Interaction
• Accurate nuclear radii and binding energies from a chiral interaction
• From low-momentum interactions to nuclear structure
• Nuclear effective field theory: status and perspectives
• Neutron skins and neutron stars in the multi-messenger era
• The In-Medium Similarity Renormalization Group: A Novel Ab Initio Method for Nuclei
• Similarity Renormalization Group for Nucleon-Nucleon Interactions
• Evolution of shell structure in exotic nuclei
• Thick-Restart Block Lanczos Method for Large-Scale Shell-Model Calculations
• High-quality two-nucleon potentials up to fifth order of the chiral expansion
• How well do we know the neutron-matter equation of state at the densities inside neutron stars? A Bayesian approach with correlated uncertainties
• Precision Determination of the Neutral Weak Form Factor of ${}^{48}$Ca
• Ab Initio Calculations of Medium-Mass Nuclei with Normal-Ordered Chiral NN+3N Interactions
• A nucleus-dependent valence-space approach to nuclear structure
• A Guided Tour of Ab Initio Nuclear Many-Body Theory
• Ab initio predictions link the neutron skin of ${}^{208}$Pb to nuclear forces
• The neutron skin thickness from the measured electric dipole polarizability in ${}^{68}$Ni, ${}^{120}$Sn, and ${}^{208}$Pb
• Structure of the lightest tin isotopes
• Ab initio limits of atomic nuclei
• Nuclear forces and their impact on neutron-rich nuclei and neutron-rich matter
• Matching pion-nucleon Roy-Steiner equations to chiral perturbation theory
• Saturation with chiral interactions and consequences for finite nuclei
• Astrophysical Constraints on the Symmetry Energy and the Neutron Skin of ${}^{208}$Pb with Minimal Modeling Assumptions
• Electric dipole polarizability of ${}^{48}$Ca and implications for the neutron skin
• Leading chiral three-nucleon forces along isotope chains in the calcium region
• Novel chiral Hamiltonian and observables in light and medium-mass nuclei
• Accurate bulk properties of nuclei from $A=2$ to $\infty$ from potentials with $\Delta$ isobars
• Uncertainty analysis and order-by-order optimization of chiral nuclear interactions
• Structure of ${}^{78}$Ni from first principles computations
• Three-Nucleon Forces: Implementation and Applications to Atomic Nuclei and Dense Matter
• Converged ab initio calculations of heavy nuclei
• Dipole polarizability of 120Sn and nuclear energy density functionals
• Family of Chiral Two- plus Three-Nucleon Interactions for Accurate Nuclear Structure Studies
• Proton elastic scattering from tin isotopes at 295 MeV and systematic change of neutron density distributions
• Combined theoretical analysis of the parity-violating asymmetry for ${}^{48}$Ca and ${}^{208}Pb$
• The Neutron-Rich Edge of the Nuclear Landscape. Experiment and Theory
• New applications of renormalization group methods in nuclear physics
• Nuclear equation of state for arbitrary proton fraction and temperature based on chiral effective field theory and a Gaussian process emulator
• First elastic electron scattering from ${}^{132}$Xe at the SCRIT facility
• Ab Initio Calculations of Medium-Mass Nuclei with Explicit Chiral 3N Interactions
• In-Medium Similarity Renormalization Group for Closed and Open-Shell Nuclei
• Nuclear Charge Radii of the Nickel Isotopes ${}^{58-68,70}$Ni
• Ab initio computation of charge densities for Sn and Xe isotopes
• Probing chiral interactions up to next-to-next-to-next-to-leading order in medium-mass nuclei
• Peeling off neutron skins from neutron-rich nuclei: Constraints on the symmetry energy from neutron-removal cross sections
• Trends of Neutron Skins and Radii of Mirror Nuclei from First Principles
• Horizons: Nuclear Astrophysics in the 2020s and Beyond
• \texttt{NuHamil}: A numerical code to generate nuclear two- and three-body matrix elements from chiral effective field theory
• Charge radii of ${}^{55,56}$Ni reveal a surprisingly similar behavior at $N=28$ in Ca and Ni isotopes
• The nuclear symmetry energy from neutron skins and pure neutron matter in a Bayesian framework
• Normal ordering of three-nucleon interactions for ab initio calculations of heavy nuclei
• Towards heavy-mass ab initio nuclear structure: Open-shell Ca, Ni and Sn isotopes from Bogoliubov coupled-cluster theory
• Neutron Skins: Weak Elastic Scattering and Neutron Stars
• Uncertainty quantification for $\mu \to e$ conversion in nuclei: charge distributions
• Ab initio calculations of parity-violating electron scattering off ${}^{48}$Ca and ${}^{208}$Pb