High-spin states in 35Ar and 35Cl have been populated in the 24Mg(16O, alphan) and 24Mg(16O, alphap) reactions, respectively, at a beam energy of 70 MeV. The comparison between the level schemes of these mirror nuclei shows a striking asymmetry in the population yield of high-spin analog states of positive parity, which indicates different intensities of E1 transitions connecting positive- and negative-parity structures in both nuclei. Large energy differences are observed between analog states of negative parity with configurations of dominant pure single-particle character. This results from the comparison with large-scale shell-model calculations in the s1/2d3/2f7/2p3/2 valence space. It is shown that important contributions to the energy differences arise from the multipole Coulomb and the relativistic electromagnetic spin-orbit interactions.
|Titolo:||Isospin symmetry breaking at high spin in the mirror nuclei 35Ar and 35Cl|
|Autori interni:||BRACCO, ANGELA|
|Settore Scientifico Disciplinare:||Settore FIS/01 - Fisica Sperimentale|
|Data di pubblicazione:||2007|
|Digital Object Identifier (DOI):||10.1103/PhysRevC.75.034317|
|Appare nelle tipologie:||01 - Articolo su periodico|