Is $^{40}$Mg a Borromean halo nucleus? A case built on the electric-dipole response
Abstract
We investigate the low-energy electric-dipole response of $^{40}$Mg using a $^{38}$Mg$+n+n$ three-body model. This model is implemented using a three-body hyperspherical formalism with an analytical transformed harmonic oscillator basis. In this study, two different neutron-neutron interactions are considered: a scalar Gaussian density-dependent central potential and a more realistic finite-range potential which includes central, spin-orbit, and tensor components. We examine how electric-dipole response is affected by the choice of the interaction.
Fields of Study & Subjects
Nuclear physics research studies
Atomic and Molecular Physics
Astronomical and nuclear sciences
Publication details
- Journal / source
- arXiv (Cornell University)
- Publisher
- Jagiellonian University
- Volume
- 19
- Issue
- 1
- Pages
- 1
- Publication date
- 2 February 2026
- Document type
- Preprint