Abstract
Aimed at investigating the molecular structure in high-lying resonant states in 14C, a cluster-transfer experiment, 9Be(9Be;14C →4He+10Be)4He at an incident energy of 45 MeV, was carried out. This reaction possesses a very large Q-value, which is an excellent case to select the reaction mechanism and the final states in outgoing nuclei. The high-lying resonances in 14C are reconstructed for three sets of well separated final states in 10Be. The results confirm the previous decay measurements with improved decay-channel selections and exhibit also a new state at 23.5(1) MeV. The resonant states at 22.4(3) and 24.0(3) MeV decay almost exclusively into the typical molecular states at about 6 MeV in 10Be, implying a well developed cluster structure in these high-lying states in 14C. Further measurements of more states of this kind are expected.
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