Is ${}^{40}$Mg a Borromean halo nucleus? A case built on the electric-dipole response

Jagjit Singh, J. Casal, N. R. Walet +2

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…