Elsevier

Physics Letters B

Volume 191, Issue 3, 11 June 1987, Pages 240-244
Physics Letters B

M1 transitions from the gamma band and F-spin mixing in 168Er

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Abstract

The M1 strength in a number of γ → g transitions in 168Er have been determined from high-precision L-subshell conversion electron intensity measurements. The results are combined with earlier data for transitions within the γ-band and compared with the predictions of an IBA-2 calculation. It is shown that a satisfactory description of both E2 and M1 properties can be obtained with the appropriate degree of F-spin symmetry breaking in the hamiltonian, which in turn relates to the degree of neutron-proton symmetry in the collective wavefunction.

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