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arXiv 1012.1182nucl-th
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高能近似和微观光学势下$^6$ He+ $^{12}$ C反应破裂截面的估算

Estimation of the breakup cross sections in $^6$He+$^{12}$C reaction within high-energy approximation and microscopic optical potential

E. V. Zemlyanaya, V. K. Lukyanov, K. V. Lukyanov

摘要:

本文采用高能近似(HEA),并借助于抛射核碎片$^4$ He和2n与靶核$^{12}$ C相互作用的微观光学势(OP),计算了40 MeV/核子下$^6$ He+ $^{12}$ C反应的破裂截面.将双中子$h$ =2n视为单粒子,估算了相对运动$hα$波函数,从而解释了$h$在$^6$ He中的分离能和后者的均方根半径.计算了$^6$ He+ $^{12}$ C散射的剥离和吸收总截面,并将它们的总和与双折叠显微OP中得到的总反应截面进行了比较。结果表明,破碎截面约占总反应截面的50%。

英文摘要:

The breakup cross sections in the reaction $^6$He+$^{12}$C are calculated at about 40 MeV/nucleon using the high-energy approximation (HEA) and with the help of microscopic optical potentials (OP) of interaction with the target nucleus $^{12}$C of the projectile nucleus fragments $^4$He and 2n. Considering the di-neutron $h$=2n as a single particle the relative motion $hα$ wave function is estimated so that to explain both the separation energy of $h$ in $^6$He and the rms radius of the latter. The stripping and absorbtion total cross sections are calculated and their sum is compared with the total reaction cross section obtained within a double-folding microscopic OP for the $^6$He+$^{12}$C scattering. It is concluded that the breakup cross sections contribute in about 50% of the total reaction cross section.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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