1. Identification of significant E 0 strength in the 22+→21+ transitions of 58,60,62 Ni
- Author
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Evitts, L.J., Garnsworthy, A.B., Kibédi, T., Smallcombe, J., Reed, M.W., Brown, B.A., Stuchbery, A.E., Lane, G.J., Eriksen, T.K., Akber, A., Alshahrani, B., de Vries, M., Gerathy, M.S.M., Holt, J.D., Lee, B.Q., McCormick, B.P., Mitchell, A.J., Moukaddam, M., Mukhopadhyay, S., Palalani, N., Palazzo, T., Peters, E.E., Ramirez, A.P.D., Stroberg, S.R., Tornyi, T., and Yates, S.W.
- Abstract
The E 0 transition strength in the 22+→21+ transitions of 58,60,62 Ni have been determined for the first time following a series of measurements at the Australian National University (ANU) and the University of Kentucky (UK). The CAESAR Compton-suppressed HPGe array and the Super-e solenoid at ANU were used to measure the δ(E2/M1) mixing ratio and internal conversion coefficient of each transition following inelastic proton scattering. Level half-lives, δ(E2/M1) mixing ratios and γ -ray branching ratios were measured at UK following inelastic neutron scattering. The new spectroscopic information was used to determine the E 0 strengths. These are the first 2+→2+ E 0 transition strengths measured in nuclei with spherical ground states and the E 0 component is found to be unexpectedly large; in fact, these are amongst the largest E 0 transition strengths in medium and heavy nuclei reported to date.
- Published
- 2018