Abstract
High spin states of In-109 were investigated using the reaction Zr-96(F-19, 6n)In-109 at a beam energy of 105 MeV. New level sequences have been found in this nucleus. In an earlier known band, the ordering of some of the transitions have been changed and assigned a three-quasiparticle pi(g(9/2))(-1) circle times nu[h(11/2)(d(5/2)/g(7/2))] configuration. Similar three-quasiparticle bands have also been found earlier in lighter mass In-105 and In-107 nuclei. Systematics of these bands in In-105, In-107, and In-109 nuclei are discussed in the present work within the framework of the tilted axis cranking model.