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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Energy dependence of the reduced single-particle strength for strongly-bound proton removal on C-16
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Energy dependence of the reduced single-particle strength for strongly-bound proton removal on C-16

机译：降低单颗粒强度的能量依赖性在C-16上强烈的质子去除

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摘要

Experimental data on the strongly-bound one-proton knockout from C-16 at intermediate and high energies have recently been measured at NSCL and GSI, respectively. This is the first case that strongly-bound valence-nucleon knockout from weakly-bound nuclei was measured at both intermediate and high energies on composite nuclear targets. Based on these data, the eikonal model is employed to study the energy dependence of the reduction factor R-s, defined as the ratio of the experimental and theoretical cross sections, for the strongly-bound proton knockout from C-16. The R-s deduced at high energy [R-s = 0.40(1)] is larger than that extracted at intermediate energy [R-s = 0.30(3)], but is relatively small compared to the R-s's obtained for weakly-bound nucleon knockout(R-s similar to 1) and well-bound nucleon knockout(R-s similar to 0.6). A scaled R-s value of 0.32(1) for the high energy case is obtained after considering the possible uncertainties in the experimental data. It suggests that, if the scaled R-s is reliable, measurements using high-energy beams could not resolve the spectroscopic strength reduction problem and the strong isospin asymmetry dependence of the R-s persists at high energies.
机译：最近在NSCL和GSI中测量了关于中间和高能量在中间和高能量中的强烈一质子敲除的实验数据。这是第一种情况下，在复合核目标上的中间和高能量中测量弱核核的强烈核核敲除。基于这些数据，采用尖锐模型研究减少因子R-S的能量依赖性，定义为实验性和理论横截面的比率，对于C-16的强烈质子敲除。高能量（Rs = 0.40（1）]推导的RS大于中间能中提取的RS [RS = 0.30（3）]，但与RS为弱结合的核聚核聚淘汰赛的RS相比，相对较小（RS类似于1）和富裕的核聚核聚敲除（Rs类似于0.6）。在考虑实验数据中可能的不确定性之后，获得了高能量壳的缩放R-S值为0.32（1）。它表明，如果缩放的R-S是可靠的，则使用高能光束的测量无法解决光谱强度降低问题，并且R-S在高能量上持续的强烈的索泊宾宾不对称依赖性。

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