论文标题
在$^{6} $中，三体与Dineutron的方法
Three-body vs. dineutron approach to two-neutron radiative capture in $^{6}$He
论文作者
论文摘要
理论上对$^{6} $中的$ 1^ - $软偶极激发的强度功能的低能行为进行了理论研究。使用非常大的基础尺寸和良好的外推程序可以使能量移动到1 keV，在这种能量中，似乎可以实现E1强度功能的低能量渐近行为。发现强度函数的低能行为在有效的三体“动力学二线肌模型”中得到很好的描述。计算了$α$+$ n $+$ n \ rightarrow ^6 $ he+$γ$的天体物理率。与先前的计算进行比较。
The low-energy behavior of the strength function for the $1^-$ soft dipole excitation in $^{6}$He is studied theoretically. Use of very large basis sizes and well-grounded extrapolation procedures allows to move to energies as small as 1 keV, at which the low-energy asymptotic behavior of the E1 strength function seems to be achieved. It is found that the low-energy behavior of the strength function is well described in the effective three-body "dynamical dineutron model". The astrophysical rate for the $α$+$n$+$n \rightarrow ^6$He+$γ$ is calculated. Comparison with the previous calculations is performed.
