Reinvestigation of Collective Bands in ¹⁰⁷Tc

The high spin states of a neutron-rich ¹⁰⁷Tc nucleus are reinvestigated by observing prompt γ-rays from the spontaneous fission of ²⁵²Cf. The previous level scheme is updated. A collective band based on the π5/2^-303 orbital is confirmed and extended. Inconsistencies in the configuration assignments for a type of positive parity bands of odd-A ^105,107,109Tc in the previous reports are clarified according to the g factor calculations. A new band based on the 1499.5keV level in ¹⁰⁷Tc is proposed as a two-phonon γ-vibrational band.