Speaker
Description
How the nuclear magicity emerge from the underlying nuclear forces? Conventional understanding is based on the picture of the mean field, in which the nucleons move individually around onion-like orbits. Such a picture lacks the important many-body correlations and the connection to the bare nucleon-nucleon forces is obscure. We present a lattice nuclear force model capturing the essential elements of the nuclear binding and emergence of the magicity. Our model contains five adjustable parameters fitted to binding energies of medium-mass nuclei and can be solved non-perturbatively with sign-problem-free quantum Monte Carlo techniques. We obtain precision nuclear binding energies for A<=56 with an accuracy comparable with the state-of-the-art mean field models. Based on these numerial results, we discuss the dual role of the spin-orbit coupling in NN scattering and nuclear shell evolution.
