High spin collective excitations in 101Ru

Abstract The energy level structure of 101 Ru was studied using the reactions 100 Mo(α, 3n) 101 Ru and 100 Mo( 3 He, 2n) 101 Ru. Excitation functions, γγ coincidences and γ-ray angular distributions were measured. Three ΔI = 2 cascades proceeding to a 5 2 + , 7 2 + and 11 2 − state were observed. A decay scheme is presented showing energies up to 5849 keV and spins up to 35 2 . The bands are discussed within the framework of the Nilsson model with Coriolis coupling in which the recoil effect has been properly introduced.