Nuclear structure of Te isotopes beyond neutron magic number N=82

First observation of the π0h11/2⊗ν0h9/2 partner orbital configuration in the odd-odd Moon1, Gargano2, Naïdja3 et al. 2022Phys. Rev. CSelf Cite

“…These two interactions have been broadly employed to investigate nuclei in the northeast region of 132 Sn, by predicting features revealing a single particle as well as a collective nature [29][30][31][32][33][34][35][36]. The recently observed levels in Sb and Te isotopes from β-decay experiments were also described by using these interactions [8,9]. The N3LOP calculations are achieved using the ANTOINE shell model code [37,38], while the Napoli results are obtained by means of the KSHELL code [39].…”

“…In addition, the dominance of excited valence neutron configurations in the 2 + 1 state wave function for 136 Te is still one of the actively discussed topics [2][3][4]. In more neutron-rich isotopes, vibrational collective motion was observed, which is quite unusual for systems close to a doubly magic nucleus [5][6][7][8]. Furthermore, the proton shell evolution in odd-mass (A) Sb isotopes was investigated in detail and experimental data suggested a possible inversion of the π 0g 7/2 and π 1d 5/2 orbitals with increasing neutron number [9,10].…”

“…Furthermore, the proton shell evolution in odd-mass (A) Sb isotopes was investigated in detail and experimental data suggested a possible inversion of the π 0g 7/2 and π 1d 5/2 orbitals with increasing neutron number [9,10]. It is also worth noting that some states in odd-A Sb and Te isotopes were interpreted within the seniority scheme, by considering, respectively, seniority-2 and seniority-3 configurations in the ν1 f 7/2 orbit [8,9].…”