Abstract. An attempt has been made to investigate for the reaction dynamics leading to incomplete fusion (ICF) of heavy ions at moderate excitation energies, especially the influence of incomplete fusion on complete fusion (CF) of 16 O induced reactions at specific energies. Excitation functions (EFs) of various reaction products populated via CF and/or ICF of 16 O projectile with 45 Sc target were measured at energies ≈3-7 MeV/nucleon, using recoil catcher technique followed by offline γ-ray spectroscopy.The measured EFs were compared with theoretical values obtained using the statistical model code PACE4. The experimentally measured EFs were in general found to be in good agreement with the theoretical predictions for non α-emitting channels in the present target projectile system. However, for α-emitting channels the measured EFs were higher than the predictions of the theoretical model codes, which may be credited to incomplete fusion reactions at these energies.

The population of 102 Zr following the β decay of 102 Y produced in the projectile fission of 238 U at the GSI facility in Darmstadt, Germany has been studied. 102 Y is known to β decay into 102 Zr via two states, one of high spin and the other low spin. These states preferentially populate different levels in the 102 Zr daughter. In this paper the intensities of transitions in 102 Zr observed are compared with those from the decay of the low-spin level studied at the TRISTAN facility at Brookhaven National Laboratory and of the high-spin level studied at the JOSEF separator at the Kernforschungsanlage Jülich.

Abstract. The region of neutron-rich nuclei beyond 208 Pb has been very difficult to explore due to its high mass and exoticity. However, recent experimental improvements allowed one to perform a quite extended isomer decay spectroscopy of these nuclei.