Investigation of two- and three-nucleon transfer reactions in12C +56Fe

Multi-nucleon transfer reactions56Fe(12C, X) have been studied at an incident12C energy of 60 MeV. Angular distributions of10Be and9Be corresponding to 2p and 2p 1n transfer reactions in transition to low-lying states in the residual nuclei have been measured. The angular distribution data for 2p transfer have been analysed in terms of finite range DWBA calculations assuming a one-step transfer of two protons. The spectroscopic factors for three low-lying transitions observed in56Fe(12C,10Be)58Ni have been extracted. Transfer probabilities for the ground state transition in two- and three-nucleon stripping channels have been obtained and compared with the corresponding sequential transfer probabilities in order to emphasise the role of direct transfer of nucleons vis-a-vis sequential transfer.