Response functions and giant monopole resonances for light to medium-mass nuclei from the ab initio symmetry-adapted no-core-shell model

Document Type

Article

Publication Date

3-31-2025

Abstract

Using the ab initio symmetry-adapted no-core-shell model, we compute sum rules and response functions for light to medium-mass nuclei, starting from interactions that are derived in the chiral effective field theory. Specifically, we investigate electromagnetic transitions of monopole, dipole and quadrupole nature for 4He, and explore dominant features of giant monopole resonances in symmetric nuclei such as the closed-shell 4He and 16O light nuclei, the intermediate-mass open-shell 20Ne and the medium-mass closed-shell 40Ca. Furthermore, for the NNLOopt chiral potential, we determine parameter-free monopole sum rules, which can provide information on the incompressibility of symmetric nuclear matter. We report 213(10) MeV as an estimate for the compression modulus for infinite nuclear matter, which overlaps with the lower range of values often used in current astrophysical applications.

Publication Source (Journal or Book title)

Journal of Physics G Nuclear and Particle Physics

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