Abstract
Most of the structure of
125
I at low and medium energies has been successfully interpreted using a particle–rotor model. Rotational features similar to complete particle–core rotational multiplets have been identified for the first time especially for g
7/2
, d
5/2
proton–particle orbitals. The model calculations show also that the rotational structure of the ΔJ = 1 band build on unusually low-lying g
9/2
proton-hole state (9/2
+
[404]) is naturally very well predicted and successfully described as well as other rotational features for negative parity states of h
11/2
parentage along with the different observed ΔJ = 2 bands. Experimental energies and transition properties of previously observed positive and negative parity states of
125
I, have been compared to those predicted by the model calculations considering a moderately deformed rotor.