Abstract
A complete kinematics study of the 10B(3He,pααα) and 11B(3He,dααα) reactions has been performed to study the multi‐particle break‐up of 12C resonances above the triple‐alpha threshold. Four‐particle coincidence detection gives us complete information on the direction and energy of the individual alpha particles from the decay of 12C, allowing us to extract new information on the structure of 12C which we shall present in this contribution. We have observed gamma de‐excitation of the T = 1 15.11 MeV resonance using charged particle detectors, and have constructed Dalitz plots of the individual resonances in 12C using the complete kinematics information of the alpha particles which come from their break‐up.
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