Angular distributions for 1n and 2n transfer are reported for the 6He + 65Cu system at Elab =
22.6 MeV. For the first time, triple coincidences between particles, neutrons and characteristic
-rays from the target-like residues were used to separate the contributions arising from 1n and 2n
transfer. The measured differential cross-sections for these channels, elastic scattering and fusion
have been analyzed using a Coupled Reaction Channels approach. The measured large ratio of the
2n/1n cross section and the strong influence of 2n transfer on other channels point towards the
dominance of a di-neutron configuration of 6He in the reaction mechanism. |