Simple Approach to Describe 104Te

We describe the α–like nucleus 104Te in terms of the Multi Step Shell Model (MSM) by coupling collective two-particle states above the doubly magic nucleus 100Sn. To this purpose we first built proton-proton (pp), neutron-neutron (nn) and proton-neutron (pn) collective states describing the structure of 102Te, 102Sn and 102Sb, respectively in terms of Tamm-Dankoff Approach (TDA) with multipole-multipole residual interaction. Then, the eigenstates in 104Te are given by pp-nn and pn-pn quartets satisfying a simple equation in terms of pair energies. The experimental pair energies 2+, 4+, 6+ are obtained by extrapolating known data in the corresponding isotope chains. The agreement of theoretical predictions to these values is satisfactory. The role of the Pauli exclusion principled is analyzed.