论文标题
弹性$α$ - $^{12} $ c在有效田间理论中低能的散射的$ s $矩阵
The $S$ matrices of elastic $α$-$^{12}$C scattering at low energies in effective field theory
论文作者
论文摘要
在有效的现场理论中研究了弹性$α$ - $^{12} $ c散射的低能散射，以$ l = 0,1,2,3,4,5,6 $进行了研究。我们讨论了从$^{16} $ o的子阈值绑定和共振状态的振幅方面的弹性$α$ - $^{12} $ c散射的$ s $矩阵的构建，这些幅度是从有效的lagrangian中计算得出的。出现在$ s $矩阵中的参数适用于$ p $ - $^{15} $ n分解阈值能量下方的相移数据，我们发现相位移位在理论中得到很好的描述。
The elastic $α$-$^{12}$C scattering at low energies for $l=0,1,2,3,4,5,6$ is studied in effective field theory. We discuss the construction of the $S$ matrices of elastic $α$-$^{12}$C scattering in terms of the amplitudes of sub-threshold bound and resonant states of $^{16}$O, which are calculated from the effective Lagrangian. The parameters appearing in the $S$ matrices are fitted to the phase shift data below the $p$-$^{15}$N breakup threshold energy, and we find that the phase shifts are well described within the theory.
