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论文题目:	Theoretical study of the capture of stable K-39 and neutron-rich radioactive K-46 by Ta-181
论文题目英文:
作者:	Wang, Bing; Zhao, Wei-Juan; Zhao, En-Guang; Zhou, Shan-Gui
论文出处:
刊物名称:	PHYSICAL REVIEW C
年:	2018
卷:	98
期:	1
页:	14615
联系作者:	Zhou, SG (reprint author)
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摘要:	The empirical coupled-channel (ECC) model and the universal fusion function (UFF) prescription are used to analyze the data of capture cross sections for reactions K-39 + Ta-181 and K-46 + Ta-181 reported recently by Wakhle et al. [Phys. Rev. C 97, 021602(R) (2018) ]. The results of the ECC model are in good agreement with the data of K-39 + Ta-181, while for K-46 + Ta-181 the predictions of the ECC model overestimate the above-barrier capture cross sections. Comparing the reduced data of these two reactions, it is found that the above-barrier cross sections of K-39 + Ta-181 are consistent with the UFF and are larger than those of K-46 + Ta-181. This implies that the capture cross sections of K-46 + Ta-181 are suppressed at energies above the Coulomb barrier. Furthermore, at sub-barrier energies, the reduced calculated capture cross sections of K-39 + Ta-181 are a little larger than those of K-46 + Ta-181, which is owing to the coupling to the positive Q-value two-neutron transfer channel.
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