A New High-Spin Level Scheme of ¹²⁸I

High-spin states in the odd-odd nucleus ¹²⁸I are investigated via the ¹²⁴Sn(⁷Li,3n)¹²⁸I reaction at 28 and 32 MeV beam energies. A new level scheme of ¹²⁸I is established up to high-spin states at I^π=16, including 48 levels and 72γ transitions. The present level scheme is largely different from the one in a recent publication due to identification of several doublet and triplet γ transitions and their proper placements in the level scheme. The high-spin level structure exhibits no obvious collective properties and is possibly associated with two and multi-quasiparticle configurations.