Isobaric Multiplet Yrast Energies and Isospin Nonconserving Forces
A. P. ZukerIReS, Bâtiment 27, IN2P3-CNRS/Université Louis Pasteur, B.P. 28, F-67037 Strasbourg Cedex 2, FranceS. M. LenziDipartimento di Fisica and INFN, Padova, ItalyG. Martı́nez-PinedoDepartment für Physik und Astronomie, Universität Basel, CH-4056 Basel, SwitzerlandA. PovesDepartamento de Fisica Teórica C-XI Universidad Autónoma de Madrid, E-28049, Madrid, Spain
2002en
ABI
Abstract
The isovector and isotensor energy differences between yrast states of isobaric multiplets in the lower half of the pf region are quantitatively reproduced in a shell model context. The isospin nonconserving nuclear interactions are found to be at least as important as the Coulomb potential. Their isovector and isotensor channels are dominated by J=2 and J=0 pairing terms, respectively. The results are sensitive to the radii of the states, whose evolution along the yrast band can be accurately followed.
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