Interacting boson models for N∼Z nuclei
Abstract
This contribution discusses the use of boson models in the description of N∼Z nuclei. A brief review is given of earlier attempts, initiated by Elliott and coworkers, to extend the interacting boson model of Arima and Iachello by the inclusion of neutronproton s and d bosons with T = 1 (IBM3) as well as T = 0 (IBM4). It is argued that for the N∼Z nuclei that are currently studied experimentally, a different approach is needed which invokes aligned neutronproton pairs with angular momentum J = 2j and isospin T = 0. This claim is supported by an analysis of shellmodel wave functions in terms of pair states. Results of this alternative version of the interacting boson model are compared with shellmodel calculations in the 1g9/2 shell.
 Publication:

International Symposium on New Faces of Atomic Nuclei
 Pub Date:
 May 2011
 DOI:
 10.1063/1.3584040
 Bibcode:
 2011AIPC.1355...15V
 Keywords:

 neutronproton interactions;
 nucleons;
 mass;
 13.75.Cs;
 14.20.Dh;
 21.10.Dr;
 Nucleonnucleon interactions;
 Protons and neutrons;
 Binding energies and masses