CLUSTERING IN A = 10 NUCLEI

The experimental evidence for existence of cluster and molecular states in 10 Be , 10 B and 10 C is presented in details. For the most studied of the three, 10 Be , a rotational band have recently been firmly identified, with states having rather large moment of inertia. For the isobaric analogue states in 10 B first experimental results have been obtained and presented; some simple predictions for the 10 C nucleus are also given.

ISOBARIC ANALOGUE STATES STUDIED IN MIRRORED FRAGMENTATION AND KNOCKOUT REACTIONS

A Gamma-ray spectroscopic study of excited states of isobaric multiplets has been performed in recent years, with a view to gaining a quantitative understanding of energy differences between excited states in terms of a range of Coulomb and other isospin breaking phenomena. Recently, the experimental programme has been augmented by a study of isobaric analogue states of mirror nuclei populated in mirrored fragmentation reactions. In this presentation, recent results on the [Formula: see text] analogue states in the [Formula: see text] mirror pair 53 Ni /53 Mn will be summarised. In this work, further strong evidence is found for the need to include an anomalous isospin-breaking two-body matrix element for angular-momentum couplings of J = 2, in addition the expected Coulomb contribution, in order to account for the experimental data.