Decay of 6Be populated in the 6Li(3He,3H) charge-exchange reaction

A complete kinematic measurement of the Li-6(He-3,H-3)alpha pp reaction is performed at E-lab = 50 MeV, to investigate the cluster structure of Be-6. The energy and angular distributions of the breakup particles, emitted from the ground and first excited states of Be-6, are compared to three-body resonance and two-body sequential decay calculations. The results indicate a rather pure three-body configuration of the 2(+) state of Be-6 but they are not conclusive regarding the decay mode of the 0(+) state. No branching ratio between sequential and three-body decay paths could be extracted. Excitations above the 2(+) state were populated at E-x = 1.67-23 MeV. Decay through Li-5-p and He-2-He-4 channels is identified in the continuum of Be-6, and the reaction mechanism is discussed.