Continuum effects and three-nucleon forces in neutron-rich oxygen isotopes

Abstract

We employ interactions from chiral effective field theory and compute binding energies, excited states, and radii for isotopes of oxygen with the coupled-cluster method. Our calculation includes the effects of three-nucleon forces and of the particle continuum, both of which are important for the description of neutron-rich isotopes in the vicinity of the nucleus O-24. Our main results are the placement of the neutron drip-line at O-24, the assignment of spins, parities and resonance widths for several low-lying states of the drip-line nucleus, and an efficient approximation that incorporates the effects of three-body interactions.

4 pages, 3 figures; small correction of effective 3NF and slight change of the corresponding parameters; updated figures and table; main results and conclusions unchanged

References in corpus (14)

• Chiral effective field theory and nuclear forces
• Improved nuclear matter calculations from chiral low-momentum interactions
• Similarity Renormalization Group for Nucleon-Nucleon Interactions
• Recent developments in no-core shell-model calculations
• Shell Model in the Complex Energy Plane
• Three-Nucleon Low-Energy Constants from the Consistency of Interactions and Currents in Chiral Effective Field Theory
• Coupled-cluster theory for three-body Hamiltonians
• Evidence for the ground-state resonance of 26O
• Solution of the center-of-mass problem in nuclear structure calculations
• Complex coupled-cluster approach to an ab-initio description of open quantum systems
• Chiral three-nucleon interaction and the carbon-14 dating beta decay
• Ab-initio computation of neutron-rich oxygen isotopes
• Ab initio coupled-cluster theory for open-shell nuclei
• Exploring the anomaly in the interaction cross section and matter radius of 23O

Cited by in corpus (127)

• Coupled-cluster computations of atomic nuclei
• Accurate nuclear radii and binding energies from a chiral interaction
• Nuclear effective field theory: status and perspectives
• The In-Medium Similarity Renormalization Group: A Novel Ab Initio Method for Nuclei
• Evolution of shell structure in exotic nuclei
• Three-body forces: From cold atoms to nuclei
• An optimized chiral nucleon-nucleon interaction at next-to-next-to-leading order
• Quantum Monte Carlo Calculations with Chiral Effective Field Theory Interactions
• A nucleus-dependent valence-space approach to nuclear structure
• Evolution of shell structure in neutron-rich calcium isotopes
• A Guided Tour of Ab Initio Nuclear Many-Body Theory
• Non-Empirical Interactions for the Nuclear Shell Model: An Update
• Neutron matter from chiral effective field theory interactions
• Ab initio limits of atomic nuclei
• Nonperturbative shell-model interactions from the in-medium similarity renormalization group
• Nuclear forces and their impact on neutron-rich nuclei and neutron-rich matter
• Unified ab initio approaches to nuclear structure and reactions
• Ab Initio Calculations of Even Oxygen Isotopes with Chiral Two- Plus Three-Nucleon Interactions
• Ab Initio Path to Heavy Nuclei
• Searching for isovector signatures in the neutron-rich oxygen and calcium isotopes
• Ab-initio coupled-cluster effective interactions for the shell model: Application to neutron-rich oxygen and carbon isotopes
• Isotopic chains around oxygen from evolved chiral two- and three-nucleon interactions
• Unified ab initio approach to bound and unbound states: no-core shell model with continuum and its application to 7He
• Structure of ${}^{78}$Ni from first principles computations
• Three-Nucleon Forces: Implementation and Applications to Atomic Nuclei and Dense Matter
• Self-consistent Green's functions formalism with three-body interactions
• Radii and binding energies in oxygen isotopes: a puzzle for nuclear forces
• Ab initio description of the exotic unbound 7He nucleus
• Ab Initio Multi-Reference In-Medium Similarity Renormalization Group Calculations of Even Calcium and Nickel Isotopes
• Ground and excited states of doubly open-shell nuclei from ab initio valence-space Hamiltonians
• Symmetric nuclear matter with chiral three-nucleon forces in the self-consistent Green's functions approach
• Exploring sd-shell nuclei from two- and three-nucleon interactions with realistic saturation properties
• Ab-initio No-Core Gamow Shell Model calculations with realistic interactions
• Ab initio multi-shell valence-space Hamiltonians and the island of inversion
• Chiral three-nucleon force at N^4LO II: Intermediate-range contributions
• Beyond the Neutron Drip-Line: The Unbound Oxygen Isotopes 25O and 26O
• Exotic neutron-rich medium-mass nuclei with realistic nuclear forces
• Essential elements for nuclear binding
• Quantum Monte Carlo calculations of neutron matter with non-local chiral interactions
• First principles description of the giant dipole resonance in 16O
• Chiral three-nucleon forces and the evolution of correlations along the oxygen isotopic chain
• Efficient calculation of chiral three-nucleon forces up to N3LO for ab initio studies
• Ab-initio self-consistent Gorkov-Green's function calculations of semi-magic nuclei - II. Numerical implementation at second order with a two-nucleon interaction
• Chiral EFT based nuclear forces: Achievements and challenges
• Coupled-cluster calculations of neutrinoless double-beta decay in ${}^{48}$Ca
• Ab Initio Calculations of Medium-Mass Nuclei with Explicit Chiral 3N Interactions
• Giant and pigmy dipole resonances in 4He, 16,22O, and 40Ca from chiral nucleon-nucleon interactions
• In-Medium Similarity Renormalization Group for Closed and Open-Shell Nuclei
• Few- and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces
• Three-body forces and proton-rich nuclei
• Ab initio predictions for polarized DT thermonuclear fusion
• Non-observable nature of the nuclear shell structure. Meaning, illustrations and consequences
• Emergent properties of nuclei from ab initio coupled-cluster calculations
• Elastic proton scattering of medium mass nuclei from coupled-cluster theory
• Ab initio many-body calculations of nucleon-4He scattering with three-nucleon forces
• Chiral three-nucleon forces and bound excited states in neutron-rich oxygen isotopes
• Living on the edge of stability, the limits of the nuclear landscape
• Ab-initio no-core Gamow shell model calculations of multi-neutron systems
• From the lightest nuclei to the equation of state of asymmetric nuclear matter with realistic nuclear interactions
• Symplectic No-core Shell-model Approach to Intermediate-mass Nuclei
• Multi-shell effective interactions
• Computational Nuclear Quantum Many-Body Problem: The UNEDF Project
• Two-proton emission and related phenomena
• Spectrum of shear modes in the neutron-star crust: Estimating the nuclear-physics uncertainties
• Continuum effects in neutron-drip-line oxygen isotopes
• Ab initio Gamow in-medium similarity renormalization group with resonance and continuum
• Historical perspective and future prospects for nuclear interactions
• Two-neutron halo structure of ${}^{31}$F
• Operator evolution for ab initio nuclear theory
• Power counting in chiral effective field theory and nuclear binding
• Evidence for Z=6 `magic number' in neutron-rich carbon isotopes
• Three-nucleon force in chiral EFT with explicit $\Delta (1232)$ degrees of freedom: Longest-range contributions at fourth order
• An {\it ab-initio} Gamow shell model approach with a core
• The roles of three-nucleon force and continuum coupling in mirror symmetry breaking of oxygen mass region
• Role of three-nucleon forces and many-body processes in nuclear pairing
• Spherical coupled-cluster theory for open-shell nuclei
• Ab Initio study of neutron drops with chiral Hamiltonians
• Challenges in Nuclear Structure Theory
• Spectroscopy of ${}^{26}$F to probe proton-neutron forces close to the drip line
• Unbound spectra of neutron-rich oxygen isotopes predicted by the Gamow shell model
• Can chiral EFT give us satisfaction?
• Constraining the density dependence of the symmetry energy with nuclear data and astronomical observations in the KIDS framework
• Chiral three-nucleon force and continuum for dripline nuclei and beyond
• Implementing chiral three-body forces in terms of medium-dependent two-body forces
• Ab Initio Excited States from the In-Medium Similarity Renormalization Group
• Sensitivities and correlations of nuclear structure observables emerging from chiral interactions
• Three-body correlations in the ground-state decay of 26O
• Description of proton-rich nuclei in the $A\sim 20$ region with the Gamow shell model
• Continuum and three-nucleon force in Borromean system: The 17Ne case
• Nuclear three-body problem in the complex energy plane: Complex-Scaling-Slater method
• Double-magicity of proton drip-line nucleus ${}^{22}$Si with \textit{ab initio} calculation
• Recent progress in configuration-interaction shell model
• Nuclear Structure from the In-Medium Similarity Renormalization Group
• Extension and parameterization of high-order density dependence in Skyrme forces
• Effective proton-neutron interaction near the drip line from unbound states in ${}^{25,26}$F
• Search for excited states in ${}^{25}$O
• Non-trivial effect for the large radius at the dripline of Oxygen isotopes
• Ab initio descriptions of $A=16$ mirror nuclei with resonance and continuum coupling
• The relevance of pion-exchange contributions versus contact terms in the chiral effective field theory description of nucleon-nucleon scattering
• Complex valence-space effective operators for observables: the Gamow-Teller transition
• Three-body forces and Efimov physics in nuclei and atoms
• Excited states in the neutron-rich nucleus 25F
• Coulomb Excitation of Deuteron in Peripheral Collisions with a Heavy Ion
• Many-body Propagator Theory with Three-Body Interactions: a Path to Exotic Open Shell Isotopes
• Ab initio no-core shell model study of ${}^{18-23}$O and ${}^{18-24}$F isotopes
• Ground-state properties of doubly magic nuclei from the unitary-model-operator approach with the chiral two- and three-nucleon forces
• Realistic shell-model calculations and exotic nuclei
• Importance truncation in non-perturbative many-body techniques
• The radius of a typical-mass neutron star and chiral effective field theory
• King-plot analysis of isotope shifts in simple diatomic molecules
• Nucleon-nucleon resonances at intermediate energies using a complex energy formalism
• Uncovering the mechanism of chiral three-nucleon force in driving spin-orbit splitting
• Structure and dynamics of open-shell nuclei from spherical coupled-cluster theory
• Combined few-body and mean-field model for nuclei
• Introduction of the one-body correlation operator in the unitary-model-operator approach
• Pairing in the BCS and LN approximations using continuum single particle level density
• From spin to pseudospin symmetry: The origin of magic numbers in nuclear structure
• Recent Progress in the Theory of Nuclear Forces
• Exactness of the normal-ordered two-body truncation of three-nucleon forces
• Ground-state energies and charge radii of ${}^4$He, ${}^{16}$O, ${}^{40}$Ca, and ${}^{56}$Ni in the unitary-model-operator approach
• Electromagnetic Reactions and Few-Nucleon Dynamics
• Exploring the neutron dripline two neutrons at a time: The first observations of the 26O and 16Be ground state resonances
• From closed shells to open shells: Coupled-cluster calculations of atomic nuclei
• Formal Developments for Lattice QCD with Applications to Hadronic Systems
• An overview of symmetric nuclear matter properties from chiral interactions up to fourth order of the chiral expansion
• Structure evolution of ground and excited states in the exotic nucleus ${}^{22}$Al
• Three-nucleon forces and nuclei at the extremes