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Positive $Q$-Value Neutron Transfer Mediated Sub-Barrier Fusion Reactions |
| Pei-Wei Wen1,2, Zhao-Qing Feng3, Fan Zhang1,2, Cheng Li1,2, Cheng-Jian Lin4, Feng-Shou Zhang1,2,5 |
1Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
2Beijing Radiation Center, Beijing 100875
3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
4China Institute of Atomic Energy, Beijing 102413
5Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000
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| Cite this article: |
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Pei-Wei Wen, Zhao-Qing Feng, Fan Zhang et al 2017 Chin. Phys. Lett. 34 042501 |
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Abstract Positive $Q$-value neutron transfer mediated sub-barrier fusion reactions are studied with an empirical coupled channels model, which takes into account neutron rearrangement related only to the dynamical matching condition with no free parameters. Fusion cross sections of collision systems $^{32}$S+$^{90,94,96}$Zr are calculated and analyzed. Logarithmic residual enhancement (LRE) is proposed to evaluate the discrepancy between calculated results and experimental data. The experimental data can be described well with this model for the first time as a whole, while the LRE analysis shows that there are still theoretical systematic deviations.
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Received: 24 November 2016
Published: 21 March 2017
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| PACS: |
25.70.Hi
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(Transfer reactions)
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24.10.Eq
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(Coupled-channel and distorted-wave models)
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25.70.Jj
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(Fusion and fusion-fission reactions)
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11635003, 11025524, 11161130520, 11175218 and U1332207, the National Basic Research Program of China under Grant No 2010CB832903, and the European Commission's 7th Framework Programme (Fp7-PEOPLE-2010-IRSES) under Grant No 269131. |
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