Momentum distributions in stripping reactions of radioactive projectiles at intermediate energies
Momentum distributions in stripping reactions of radioactive projectiles at intermediate energies
复制标题
中等能量放射性射弹剥离反应的动量分布
DOI：
10.1103/physrevc.70.034609
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发表时间：
2004
影响因子：
3.1
通讯作者：
C. Hansen
中科院分区：
文献类型：
--
作者：
C. Hansen
在轻靶上的剥裂反应（非弹性破裂）中单核子移除理论被扩展，通过使用针对芯 - 靶和核子 - 靶相互作用的实际轮廓函数，涵盖了反应剩余物的二维动量分布。给出了计算得到的投影平行和横向动量分布的示例。横向动量分布，即垂直于束流方向的笛卡尔轴上的投影，显示了剥裂反应与反应剩余物在靶上的弹性散射有趣的混合。我们还得到了关于平行和横向动量变量的截面的双微分分布。这些分布强烈依赖于磁量子数\(m\)的值。它们对于评估实验中的接收度校正很重要，并且它们导致了与后续伽马射线各向异性发射可能性的取向一致，这是一种有趣的光谱学工具。\({}^{8}\text{B}\)的质子剥裂实验数据与我们的计算相符。
The theory of one-nucleon removal in the stripping reaction (inelastic breakup) on a light target is extended to cover two-dimensional momentum distributions of the reaction residues with the use of realistic profile functions for the core-target and nucleon-target interactions. Examples of the calculated projected parallel- and transverse momentum distributions are given. The transverse momentum distributions, projections on a Cartesian axis perpendicular to the beam direction, show an interesting intermingling of the stripping reaction with elastic scattering of the reaction residue on the target. We also obtain doubly differential distributions of the cross section on the parallel- and transverse-momentum variables. The distributions depend strongly on the value of the magnetic quantum number m. They will be of importance for evaluating acceptance corrections in experiments, and they lead to alignment with the possibility of anisotropic emission of subsequent gamma rays, an interesting spectroscopic tool. Experimental data for proton stripping of {sup 8}B agree with our calculations.