Be9 scattering with microscopic wave functions and the continuum-discretized coupled-channel method
Be9 scattering with microscopic wave functions and the continuum-discretized coupled-channel method
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Be9 微观波函数散射和连续离散耦合通道方法
DOI：
10.1103/physrevc.97.014612
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发表时间：
2018
影响因子：
3.1
通讯作者：
Itagaki N.
中科院分区：
文献类型：
--
作者：
Descouvemont P.;Itagaki N.
我们使用多簇模型中定义的微观波函数来计算目标散射截面。根据随机变分方法的精神生成参数集，并通过叠加Slater行列式和对角化哈密顿量得到最优解。三体连续体用平方积分波函数近似。然后将微观波函数用于弹性散射的连续离散耦合通道（CDCC）计算。在不进行参数拟合的情况下，所得结果与实验结果吻合较好。对于重目标，解体的影响较大，而对于轻目标，解体的影响较小。这一结果证实了以前的非微观CDCC计算。微观CDCC的主要优点之一是它仅基于核子-靶相互作用；没有可调参数。目前的工作是迈向更雄心勃勃的计算的第一步，涉及更重的Be同位素。
We use microscopicwave functions defined in amulticluster model to compute+target scattering cross sections. The parameter sets describingare generated in the spirit of the stochastic variational method, and the optimal solution is obtained by superposing Slater determinants and by diagonalizing the Hamiltonian. Thethree-body continuum is approximated by square-integral wave functions. Themicroscopic wave functions are then used in a continuum-discretized coupled-channel (CDCC) calculation ofand ofelastic scattering. Without any parameter fitting, we obtain a fair agreement with experiment. For a heavy target, the influence ofbreakup is important, while it is weaker for light targets. This result confirms previous nonmicroscopic CDCC calculations. One of the main advantages of the microscopic CDCC is that it is based on nucleon-target interactions only; there is no adjustable parameter. The present work represents a first step towards more ambitious calculations involving heavier Be isotopes.