论文标题
同位素分辨的中子总横截面在中间能
Isotopically resolved neutron total cross sections at intermediate energies
论文作者
论文摘要
中子总跨节$σ_{tot} $^{16,18} $ o，$^{58,64} $ ni，$^{103} $ rh，$^{112,124} $ sn在Los Alamos NeTram Science Center（Lansce e _ insmed intermed ysmide ysmide ysmed ysmed ysmed ysmed ysmed ysmed ysmed ysmed commed）中\ LEQ $ 450 MEV）通过利用波形二元化技术。提出了同位素之间的$σ_{tot} $相对差异，从而揭示了有关准确的光学模型描述所需的ISOVECTOR组件的其他信息，远离稳定性。介绍了使用这些新数据的一系列不确定性的分散光学模型（DOM）分析，讨论了使用这些新数据的一系列不确定性的分散性光学模型（DOM）分析，验证了DOM用于建模光系统（$^{16,18} $）的使用（$^$^$ ni）（$^58,64}，使用这些新数据验证了DOM的使用（$^{16,18} $ ni） $^{112,124} $ sn）。针对每种同位素提取的价值核子光谱因子重申了高能质子反应横截面的有用性，以表征平均场期望的耗竭。
The neutron total cross sections $σ_{tot}$ of $^{16,18}$O, $^{58,64}$Ni, $^{103}$Rh, and $^{112,124}$Sn have been measured at the Los Alamos Neutron Science Center (LANSCE) from low to intermediate energies (3 $\leq E_{lab} \leq$ 450 MeV) by leveraging waveform-digitizer technology. The $σ_{tot}$ relative differences between isotopes are presented, revealing additional information about the isovector components needed for an accurate optical-model description away from stability. Digitizer-enabled $σ_{tot}$-measurement techniques are discussed and a series of uncertainty-quantified dispersive optical model (DOM) analyses using these new data is presented, validating the use of the DOM for modeling light systems ($^{16,18}$O) and systems with open neutron shells ($^{58,64}$Ni and $^{112,124}$Sn). The valence-nucleon spectroscopic factors extracted for each isotope reaffirm the usefulness of high-energy proton reaction cross sections for characterizing depletion from the mean-field expectation.
