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arXiv 2103.06729nucl-th
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重离子核反应可行核-核势的研究

Search for a viable nucleus-nucleus potential for heavy-ion nuclear reactions

T. Nandi, D. K. Swami, P. S. Damodara Gupta, Yash Kumar, S. Chakraborty, H. C. Manjunatha

备注：
4 figures. arXiv admin note: substantial text overlap with arXiv:1901.03515
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摘要：

我们已经建立了一个经验公式的融合和相互作用的障碍，使用实验值到目前为止。这样得到的融合障碍进行了比较与不同的模型预测的基础上的接近，伍兹-撒克逊和双折叠的潜力，随着几个经验公式，时间依赖的Hartree-Fock理论，和实验结果。通过比较，我们可以找到最佳的模型，这只是目前的经验公式。最值得注意的是，熔合势垒和半径也与合成超重元素的反应的实验结果非常一致。此外，还发现用经典的Wong公式[C。Wong，Phys. Rev. Lett. {31}，766（1973）]的总熔合截面与实验结果吻合得很好。同样，目前的相互作用势垒的预测也进行了比较，以及与一些实验结果和Bass势模型的相互作用势垒的预测。重要的是，本公式的融合以及相互作用的障碍将有实际意义的库仑势垒附近的物理研究进行。此外，目前的熔合势垒和半径为我们提供了一个很好的核-核势有用的许多理论应用。

英文摘要：

We have constructed an empirical formulae for the fusion and interaction barriers using experimental values available till date. The fusion barriers so obtained have been compared with different model predictions based on the proximity, Woods-Saxon and double folding potentials along with several empirical formulas, time dependent Hartree-Fock theories, and the experimental results. The comparison allows us to find the best model, which is nothing but the present empirical formula only. Most remarkably, the fusion barrier and radius show excellent consonance with the experimental findings for the reactions meant for synthesis of the superheavy elements also. Furthermore, it is seen that substitution of the predicted fusion barrier and radius in classic Wong formula [C. Wong, Phys. Rev. Lett. {31}, 766 (1973)] for the total fusion cross sections satisfies very well with the experiments. Similarly, current interaction barrier predictions have also been compared well with a few experimental results available and Bass potential model meant for the interaction barrier predictions. Importantly, the present formulae for the fusion as well as interaction barrier will have practical implications in carrying out the physics research near the Coulomb barrier energies. Furthermore, present fusion barrier and radius provide us a good nucleus-nucleus potential useful for numerous theoretical applications.

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