Collapse of N$=$28 magicity in exotic ${}^{40}$Mg -- Probe of deformed halo and 2n-radioactivity at Mg neutron drip-line

G. Saxena, M. Kumawat, R. Sharma +1

The exotic phenomenon of two-neutron halos and 2n-radioactivity are explored in the neutron-rich ${}^{40,42,44}$Mg by employing various variants of the relativistic mean-field approa…