Nature of the three-quasiparticle state in 83Y

Information on the nature of the 17 2 2 − state in 83 is deduced from measurements of g-factor. The measurements were carried out using the IMPAD technique in an iron host. The g-factor, g( 17 2 − )= 0.29 (6) , excludes a structure for the state arising from pure configurations of a rotationally aligned g 9 2 proton, neutron, or proton-neutron pair. Satisfactory agreement is only found if the state has both protons and neutrons active in the g 9 2 shell.