中文摘要：

A cluster-transfer experiment of 9Be(9Be,14C→α+10Be)α at an incident energy of 45 MeV was carried out in order to investigate the molecular structure in high-lying resonant states in 14C.This reaction is of extremely large Q-value,making it 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 discriminated final states in 10Be.The results confirm the previous decay measurements with clearly improved decay-channel selections and also show a new state at 23.5（1） MeV.The resonant states at 22.4（3） and 24.0（3） MeV decay primarily into the typical molecular states at about 6 MeV in 10Be,indicating a well developed cluster structure in these high-lying states in 14C.Further measurements of more states of this kind are suggested.

英文摘要：

A cluster-transfer experiment of 9Be（gBe,14 C --＋ a＋lOBe）e： at an incident energy of 45 MeV was carried out in order to investigate the molecular structure in high-lying resonant states in 14C. This reaction is of extremely large Q-value, making it 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 discriminated final states in 10Be. The results confirm the previous decay measurements with clearly improved decay-channel selections and also show a new state at 23.5（1） MeV. The resonant states at 22.4（3） and 24.0（3） MeV decay primarily into the typical molecular states at about 6 MeV in 10Be, indicating a well developed cluster structure in these high-lying states in l4C. Further measurements of more states of this kind are suggested.