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arXiv 0708.3586nucl-th
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用折叠法和高能近似计算$^{6}$ He+p弹性散射截面

Calculations of $^{6}$He+p elastic scattering cross sections using folding approach and high-energy approximation for the optical potential

K. V. Lukyanov, V. K. Lukyanov, E. V. Zemlyanaya, A. N. Antonov, M. K. Gaidarov

摘要:

计算了微观光学势的实部和虚部,分析了几十MeV/N的$^6$ He+p弹性散射数据.用$^6$ He的三种模型密度计算了OP和截面。NN力的正则化及其对核密度的依赖性的影响进行了研究。此外,自旋轨道项和非线性的OP的计算中的作用,以及它们的重整化的影响进行了研究。测试了截面对核密度的灵敏度,并选择了其中一个与数据吻合较好的截面。

英文摘要:

Calculations of microscopic optical potentials (OP's) (their real and imaginary parts) are performed to analyze the $^6$He+p elastic scattering data at a few tens of MeV/nucleon (MeV/N). The OP's and the cross sections are calculated using three model densities of $^6$He. Effects of the regularization of the NN forces and their dependence on nuclear density are investigated. Also, the role of the spin-orbit terms and of the non-linearity in the calculations of the OP's, as well as effects of their renormalization are studied. The sensitivity of the cross sections to the nuclear densities was tested and one of them that gives a better agreement with the data was chosen.

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