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Neutron-rich nuclei and neutron skins from chiral low-resolution interactions
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Neutron-rich nuclei and neutron skins from chiral low-resolution interactions
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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.
Forward citations
Cited by 17 Pith papers
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Ab initio calculations of parity-violating electron scattering off $^{48}$Ca and $^{208}$Pb
Ab initio chiral EFT calculations of parity-violating asymmetries for 48Ca and 208Pb show mild tension with data and infer a neutron skin of 0.187(25)(18) fm for 208Pb.
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Nuclear charge radii of aluminium isotopes at the proton drip line
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BCCSD[T] calculations of even-even tin isotopes predict a neutron dripline at A≈150–176 that is highly sensitive to chiral interactions and in tension with EDF results, while matching neutron-deficient S2n extrapolations.
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Time-ordered Diagrammatic Monte Carlo for atomic nuclei
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Taming nuclear size and shape effects in superallowed beta-decay
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Nuclear charge radii of aluminium isotopes at the proton drip line
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Muonic-atom x-ray measurements determine the charge radii of 35Cl and 37Cl as 3.3333(23) fm and 3.3444(23) fm respectively, with the isotope difference 25 times more precise than before.
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Lattice calculation of the Sn isotopes near the proton dripline
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Absence of a shell closure in $^{140}$Sn
Chiral-EFT ab initio computations yield a small 2+ energy in 140Sn under a closed 7/2- subshell assumption, contradicting that shell closure.
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Automated MBPT through fifth order yields converging ground-state energies for closed-shell nuclei up to 78Ni and exposes missing triples/quadruples in IMSRG(2).
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Ab initio calculations of nuclear charge radii across and beyond ${}^{132}$Sn: Putting chiral EFT nuclear interactions to the test
No chiral-EFT Hamiltonian tested here reproduces all tin charge-radius trends; 1.8/2.0 (EM7.5) matches the 132Sn kink for the wrong physical reason.
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