New proton and neutron magic numbers in neutron-rich nuclei

It is now known that in neutron-rich nuclei, old magic numbers disappear and new ones appear. Single nucleon and double nucleon separation energies are plotted here in all possible manner. Using this data it is shown here that nuclei with pair of proton number Z and neutron number N (Z, N): (6, 12), (8, 16), (10, 20), (11, 22) and (12, 24) exhibit exceptional stability or magicity. As such these magic numbers appear in pairs. This correlation is shown here to be indicative of predominance of tritons in the ground state of these neutron-rich nuclei. Thus Ne-30(10)20 has the structure of 10 H-3(1)2 in the ground state. It is shown here that this is due to fundamental symmetry arguments based on a new symmetry group SU(2)(A) nusospin.