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
et al.
Abstract: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 approach. The extended tail of spatial density distributions including the enhanced neutron radii and skin thickness, pairing correlations, single-particle spectrum and wave functions predict 40,42,44 Mg to be strong candidates for deformed neutron halos. Weakening of magicity at N=28 plays a significant role in the existence of a weakly bound… Show more
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