Investigation of the near-threshold cluster resonance in <sup>14</sup>C

Hong-Liang Zang; Yan-Lin Ye; Zhi-Huan Li; Jian-Song Wang; Jian-Ling Lou; Qi-Te Li; Yu-Cheng Ge; Xiao-Fei Yang; Jing Li; Wei Jiang; Jun Feng; Qiang Liu; Biao Yang; Zhi-Qiang Chen; Yang Liu; Hong-Yi Wu; Chen-Yang Niu; Chen-Guang Li; Chun-Guang Wang; Xiang Wang; Wei Liu; Jian Gao; Han-Zhou Yu; Jun-Bin Ma; Peng Ma; Zhen Bai; Yan-Yun Yang; Shi-Lun Jin; Fei Lu

doi:10.1088/1674-1137/42/7/074003

Chinese Physics C> 2018, Vol. 42> Issue(7) : 074003 DOI: 10.1088/1674-1137/42/7/074003

Investigation of the near-threshold cluster resonance in ¹⁴C

Hong-Liang Zang ¹ ,
Yan-Lin Ye ¹ ,
Zhi-Huan Li ¹ ,
Jian-Song Wang ² ,
Jian-Ling Lou ¹ ,
Qi-Te Li ¹ ,
Yu-Cheng Ge ¹ ,
Xiao-Fei Yang ¹ ,
Jing Li ³ ,
Wei Jiang ⁴ ,
Jun Feng ¹ ,
Qiang Liu ¹ ,
Biao Yang ¹ ,
Zhi-Qiang Chen ¹ ,
Yang Liu ¹ ,
Hong-Yi Wu ¹ ,
Chen-Yang Niu ¹ ,
Chen-Guang Li ¹ ,
Chun-Guang Wang ¹ ,
Xiang Wang ¹ ,
Wei Liu ¹ ,
Jian Gao ^1,5 ,
Han-Zhou Yu ¹ ,
Jun-Bin Ma ² ,
Peng Ma ² ,
Zhen Bai ² ,
Yan-Yun Yang ² ,
Shi-Lun Jin ² ,
Fei Lu ⁶

1.
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
2.
Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
3.
Argonne National Laboratory, 9700 S Cass Ave B109, Lemont, Illinois 60439, USA
4.
Institute of High Energy Physics, CAS, Beijing 100049, China
5.
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
6.
RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
7.
Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 200000, China

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Abstract：
An experiment for m p(¹⁴C},¹⁴C^*→¹⁰Be+α)p inelastic excitation and decay was performed in inverse kinematics at a beam energy of 25.3 MeV/u. A series of ¹⁴C excited states, including a new one at 18.3(1) MeV, were observed which decay to various states of the final nucleus of ¹⁰Be. A specially designed telescope system, installed around zero degrees, played an essential role in detecting the resonant states near the α-separation threshold. A state at 14.1(1) MeV is clearly identified, being consistent with the predicted band-head of the molecular rotational band characterized by the π-bond linear chain configuration. Further clarification of the properties of this exotic state is suggested by using appropriate reaction tools.
- cluster decay ,
- linear-chain-state ,
- high detection efficiency ,
- inelastic excitation

References

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Hong-Liang Zang, Yan-Lin Ye, Zhi-Huan Li, Jian-Song Wang, Jian-Ling Lou, Qi-Te Li, Yu-Cheng Ge, Xiao-Fei Yang, Jing Li, Wei Jiang, Jun Feng, Qiang Liu, Biao Yang, Zhi-Qiang Chen, Yang Liu, Hong-Yi Wu, Chen-Yang Niu, Chen-Guang Li, Chun-Guang Wang, Xiang Wang, Wei Liu, Jian Gao, Han-Zhou Yu, Jun-Bin Ma, Peng Ma, Zhen Bai, Yan-Yun Yang, Shi-Lun Jin and Fei Lu. Investigation of the near-threshold cluster resonance in ¹⁴C[J]. Chinese Physics C, 2018, 42(7): 074003. doi: 10.1088/1674-1137/42/7/074003

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Received: 2018-04-03

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Supported by National Key RD Program of China (2018YFA0404403) and the National Natural Science Foundation of China (11535004, 11775004, 11405005, 11375017)

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Investigation of the near-threshold cluster resonance in 14C

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Investigation of the near-threshold cluster resonance in 14C

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Investigation of the near-threshold cluster resonance in ¹⁴C

Investigation of the near-threshold cluster resonance in ¹⁴C