Isospin mixing between low-lying states of the odd-odd N = Z nucleus 54Co

Phys Rev Lett. 2002 Jul 1;89(1):012502. doi: 10.1103/PhysRevLett.89.012502. Epub 2002 Jun 14.

Abstract

Isospin mixing of the recently discovered doublet of 4(+) states with isospin quantum numbers T = 0 and T = 1 in 54Co is analyzed. It is shown that the measured E2/M1 multipole mixing ratios can be used to estimate the isospin mixing of these states. Combining the new experimental data with results of a shell model calculation, the amount of isospin mixing is found to be approximately 0.2%.