Systematic spectroscopic study of neutron rich nuclei within a new shell model context

20th International School on Nuclear Physics, Neutron Physics and Applications

Bianco, D.^1,2 ; Iudice, N. Lo^1,2 ; Andreozzi, F.^1,2 ; Porrino, A.^1,2 ; Knapp, F.^3

Dipartimento di Fisica, Università di Napoli Federico II, Monte S. Angelo, via Cintia, Napoli

I-80126, Italy^1

Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Monte S. Angelo, via Cintia, Napoli

I-80126, Italy^2

Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic^3

关键词: Calculated spectrum;    Hamiltonian matrix;    Iterative approach;    Neutron drip line;    Neutron-rich nuclei;    Nuclear shell model;    Spectroscopic studies;    Transition strengths;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/533/1/012030/pdf
DOI  :  10.1088/1742-6596/533/1/012030

来源: IOP

【 摘 要 】

An iterative approach for diagonalizing nuclear Shell Model (SM) Hamiltonian matrices, developed few years ago, has been used for performing large scale shell model calculations around the doubly-magic132Sn. Calculated spectra and transition strengths correctly reproduces the available experimental data, and have been used for probing the prediction of collective algebraic models in this region, in particular for isotopes on which few measures are available. The calculation predicts an increasing neutron weight in the isotopes departing from the doubly-magic132Sn and moving toward the neutron drip line.