engleski

12C states populated in 10B+10B reactions

10B+10B reactions are measured with 50 and 72 MeV beams. The large spin of both beam and target nuclei (Jπ=3+) is particularly suitable for the population of high spin states in the exit channels. Population and decay of different states in 12C are studied through sequential decay reactions. The 12C excitation energy spectrum obtained from the 10B(10B, 8Be) reaction shows a number of both known and new states. In particular, a new state at Ex=24.4MeV is observed to be strongly populated in the triple α-particle coincidences. The rarely seen state at Ex=30.3MeV is found to be strong in the d+10B decay channel, reinforcing the previous suggestions that it has the exotic 2α+2d molecular structure.

light-ion reaction ; cluster structures

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