Abstract
The value for has been measured via the technique of intermediate energy Coulomb excitation using a beam of radioactive nuclei. The present result is used to test isospin purity in the mass 38 system by comparing the isoscalar multipole matrix element extracted from the transitions in and to the corresponding matrix element obtained from the states of the nucleus A discrepancy between the two values of is found, suggesting that isospin symmetry is broken in nuclei. Similar discrepancies occur for and 42. Experiments for addressing these discrepancies are proposed.
- Received 6 May 1999
DOI:https://doi.org/10.1103/PhysRevC.60.031301
©1999 American Physical Society