论文标题
使用连续离散的耦合通道计算来确定$ b（E1）$弱结合核的分布。应用于$^{11} $ BE
Determining $B(E1)$ distributions of weakly bound nuclei from breakup cross sections using Continuum Discretized Coupled Channels calculations. Application to $^{11}$Be
论文作者
论文摘要
提出了一种从实验性库仑解离数据中提取$ b（e1）$强度的新方法。该方法利用连续离散的耦合通道（CDCC）计算，其中将核力量和库仑力都考虑到所有阶。这是基于等效光子法（EPM）的标准程序的关键优势，该方法未正确考虑核失真，高阶耦合效应或库仑 - 核核干扰项。该过程应用于$^{11} $是核的，使用两组可用的实验数据在不同的能量上，使用EPM报告了看似不兼容的$ b（e1）$。我们表明，目前的程序给出了一致的$ b（e1）$优势，从而解决了上述两个测量之间的长期差异。
A novel method to extract the $B(E1)$ strength of a weakly bound nucleus from experimental Coulomb dissociation data is proposed. The method makes use of continuum discretized coupled channels (CDCC) calculations, in which both nuclear and Coulomb forces are taken into account to all orders. This is a crucial advantage with respect to the standard procedure based on the Equivalent Photon Method (EPM) which does not properly take into account nuclear distortion, higher order coupling effects, or Coulomb-nuclear interference terms. The procedure is applied to the $^{11}$Be nucleus using two sets of available experimental data at different energies, for which seemingly incompatible $B(E1)$ have been reported using the EPM. We show that the present procedure gives consistent $B(E1)$ strengths, thus solving the aforementioned long-standing discrepancy between the two measurements.
