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arXiv · 1607.00157

Cluster Decay of the High-lying excited states in $^{14}$C

Z. Y. Tian·Y. L. Ye·Z. H. Li·C. J. Lin·Q. T. Li·Y. C. Ge·J. L. Lou·W. Jiang·J. Li·Z. H. Yang·J. Feng·P. J. Li·J. Chen·Q. Liu·H. L. Zang·B. Yang·Y. Zhang·Z. Q. Chen·Y. Liu·X. H. Sun·J. Ma·H. M. Jia·X. X. Xu·L. Yang·N. R. Ma·L. J. Sun
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Abstract

A cluster-transfer experiment of $^9\rm{Be}(^9\rm{Be},^{14}\rm{C}\rightarrowα+^{10}\rm{Be})α$ at an incident energy of 45 MeV was carried out in order to investigate the molecular structure in high-lying resonant states in $^{14}$C. 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 $^{14}$C are reconstructed for three sets of well discriminated final states in $^{10}$Be. The results confirm the previous decay measurements with clearly improved decay-channel selections and show also 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 $^{10}$Be, indicating a well developed cluster structure in these high-lying states in $^{14}$C. Further measurements of more states of this kind are suggested.

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Z. Y. Tian, Y. L. Ye, Z. H. Li, C. J. Lin, Q. T. Li, Y. C. Ge, J. L. Lou, W. Jiang, J. Li, Z. H. Yang, J. Feng, P. J. Li, J. Chen, Q. Liu, H. L. Zang, B. Yang, Y. Zhang, Z. Q. Chen, Y. Liu, X. H. Sun, J. Ma, H. M. Jia, X. X. Xu, L. Yang, N. R. Ma, L. J. Sun. 2016-07-01. Cluster Decay of the High-lying excited states in $^{14}$C. https://doi.org/10.1088/1674-1137%2F40%2F11%2F111001

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