论文标题
$^{252} $ cf的自发三元裂变产生的轻元素（$ z = 1,2 $）生产
Light element ($Z=1,2$) production from spontaneous ternary fission of $^{252}$Cf
论文作者
论文摘要
从$^{252} $ cf的自发三元裂变获得的光元素的产量（$ z = 1,2 $）在非平衡方法中处理，并且不稳定的核和激发绑定状态的贡献被考虑在内。这些光簇的产量可用于探测密集的物质，并推断中等校正。连续相关性是根据使用Beth-Uhlenbeck公式的散射相移计算得出的，并估计了培养基修饰的效果。相关的分布是根据同位素的测量收益率重建的。这仅使用三个Lagrange参数，即在热力学平衡中定义的温度和化学电位的非平衡对应物。我们得出的结论是，一个简单的核统计平衡模型忽略了连续相关性，并且介质效应无法描述H和HE同位素的测得分布。此外，使用相关的统计操作员概念，冻结概念可以作为非平衡方法的重要组成部分。
The yields of light elements ($Z=1,2$) obtained from spontaneous ternary fission of $^{252}$Cf are treated within a nonequilibrium approach, and the contribution of unstable nuclei and excited bound states is taken into account. These light cluster yields may be used to probe dense matter, and to infer in-medium corrections. Continuum correlations are calculated from scattering phase shifts using the Beth-Uhlenbeck formula, and the effect of medium modification is estimated. The relevant distribution is reconstructed from the measured yields of isotopes. This describes the state of the nucleon system at scission and cluster formation, using only three Lagrange parameters which are the nonequilibrium counterparts of the temperature and chemical potentials, as defined in thermodynamic equilibrium. We concluded that a simple nuclear statistical equilibrium model neglecting continuum correlations and medium effects is not able to describe the measured distribution of H and He isotopes. Moreover, the freeze-out concept may serve as an important ingredient to the nonequilibrium approach using the relevant statistical operator concept.
