Three-body forces and proton-rich nuclei

Abstract

We present the first study of three-nucleon (3N) forces for proton-rich nuclei along the N=8 and N=20 isotones. Our results for the ground-state energies and proton separation energies are in very good agreement with experiment where available, and with the empirical isobaric multiplet mass equation. We predict the spectra for all N=8 and N=20 isotones to the proton dripline, which agree well with experiment for 18Ne, 19Na, 20Mg and 42Ti. In all other cases, we provide first predictions based on nuclear forces. Our results are also very promising for studying isospin symmetry breaking in medium-mass nuclei based on chiral effective field theory.

arXiv comment5 pages, 4 figures, minor changes, published version

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• Three-body forces and shell structure in calcium isotopes
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• Open problems in theory of nuclear open quantum systems

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• Unified equation of state for neutron stars on a microscopic basis
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• Exotic neutron-rich medium-mass nuclei with realistic nuclear forces
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• New applications of renormalization group methods in nuclear physics
• Ab-initio self-consistent Gorkov-Green's function calculations of semi-magic nuclei - II. Numerical implementation at second order with a two-nucleon interaction
• Effective double-beta-decay operator for 76Ge and 82Se
• Trends of Neutron Skins and Radii of Mirror Nuclei from First Principles
• Realistic shell-model calculations for p-shell nuclei including contributions of a chiral three-body force
• Toward global beyond-mean-field calculations of nuclear masses and low-energy spectra
• Three-nucleon force in chiral EFT with explicit $\Delta (1232)$ degrees of freedom: Longest-range contributions at fourth order
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• Nuclear Reactions from Lattice QCD
• Testing isospin symmetry breaking in ab initio nuclear theory
• Towards the Limits of Existence of Nuclear Structure: Observation and First spectroscopy of the Isotope ${}^{31}$K by measuring its three-proton Decay
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• Nuclear Matter from Effective Quark-Quark Interaction
• Double-magicity of proton drip-line nucleus ${}^{22}$Si with \textit{ab initio} calculation
• Observation of excited states in ${}^{20}$Mg sheds light on nuclear forces and shell evolution
• Ab initio descriptions of $A=16$ mirror nuclei with resonance and continuum coupling
• Complex valence-space effective operators for observables: the Gamow-Teller transition
• Generalized isobaric multiplet mass equation and its application to the Nolen-Schiffer anomaly
• Observation and spectroscopy of proton-unbound nucleus ${}^{21}$Al
• Mirror Symmetry Breaking Disclosed in the Decay of Three-Proton Emitter 20Al
• Uncovering the mechanism of chiral three-nucleon force in driving spin-orbit splitting
• Three-nucleon forces in exotic open-shell isotopes
• Isospin Mixing and the Cubic Isobaric Multiplet Mass Equation in the Lowest T = 2, A = 32 Quintet
• Gamow shell model calculations for the Thomas-Ehrman shift in new isotopes 21Al
• Three-nucleon forces and nuclei at the extremes
• The calculation of single-nucleon energies of nuclei by considering two-body effective interaction, n(k,rho), and a Hartree-Fock inspired scheme