Cluster decay of the high-lying excited states in <sup>14</sup>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

doi:10.1088/1674-1137/40/11/111001

Chinese Physics C> 2016, Vol. 40> Issue(11) : 111001 DOI: 10.1088/1674-1137/40/11/111001

Cluster decay of the high-lying excited states in ¹⁴C

Z. Y. Tian ¹ ,
Y. L. Ye ^1,, ,
Z. H. Li ¹ ,
C. J. Lin ² ,
Q. T. Li ¹ ,
Y. C. Ge ¹ ,
J. L. Lou ¹ ,
W. Jiang ¹ ,
J. Li ¹ ,
Z. H. Yang ¹ ,
J. Feng ¹ ,
P. J. Li ¹ ,
J. Chen ¹ ,
Q. Liu ¹ ,
H. L. Zang ¹ ,
B. Yang ¹ ,
Y. Zhang ¹ ,
Z. Q. Chen ¹ ,
Y. Liu ¹ ,
X. H. Sun ¹ ,
J. Ma ¹ ,
H. M. Jia ² ,
X. X. Xu ² ,
L. Yang ² ,
N. R. Ma ² ,
L. J. Sun ²

1.
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
2.
China Institute of Atomic Energy, Beijing 102413, China

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Abstract：
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.
- transfer reaction ,
- high-lying excited states ,
- cluster decay ,
- molecular structure ,
- reconstruction

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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 and L. J. Sun. Cluster decay of the high-lying excited states in ¹⁴C[J]. Chinese Physics C, 2016, 40(11): 111001. doi: 10.1088/1674-1137/40/11/111001

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Received: 2016-10-01

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Supported by the 973 Program of China (2013 CB834402) and National Natural Science Foundation of China (11275011, 11535004)

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沈阳化工大学材料科学与工程学院沈阳 110142

Cluster decay of the high-lying excited states in ¹⁴C

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Cluster decay of the high-lying excited states in ¹⁴C

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Cluster decay of the high-lying excited states in 14C

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Cluster decay of the high-lying excited states in 14C

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Cluster decay of the high-lying excited states in ¹⁴C

Cluster decay of the high-lying excited states in ¹⁴C