论文标题
分析$ ϕ $梅森和核之间的相互作用
Analysis of the interaction between $ϕ$ meson and nucleus
论文作者
论文摘要
在这项工作中，我们通过分析和拟合$γn$$ \ rightArrow ϕ $ n $（$ n $代表核代表核反应）的横截面来系统地研究$ ϕ $ meson和nucleus的相互作用。借助向量介子主导模型，介绍了$ ϕ $ -N $散射长度作为能量功能的分布，结果表明，随着能量的增加，散射长度的略有增加。基于此，通过组合实验数据和理论模型，平均散射长度为$ ϕ $ -PROTON的平均散射长度为$ 0.10 \ pm0.01 $ fm。此外，首次，$ -Deuteron交互的平均散射长度首次得出为$ 0.014 \ pm0.002 $ fm。此外，讨论了在阈值处的$ ϕ $ - $ n $散射长度上动量传输$ | t_ {min} | $的效果。获得的结果不仅为$ ϕ $ - $ n $散射长度提供了更全面，更准确的研究，还提供了重要的理论信息，而且还为将来的实验测量$ ϕ $ Meson生产提供了基础。
In this work, we systematically study the $ϕ$ meson and nucleus interaction by analyzing and fitting the cross sections of $γN$$\rightarrow ϕ$$N$ ($N$ represent the nucleus) reactions near the threshold. With the help of vector meson dominant model, the distribution of $ϕ$-$N$ scattering length as a function of energy is presented, and the results show that there is a slight increase in scattering length with increasing energy. Based on this, the average scattering length of $ϕ$-proton is obtained as $0.10\pm0.01$ fm by combining experimental data and theoretical models. Moreover, the average scattering length of $ϕ$-deuteron interaction is derived to be $0.014\pm0.002$ fm for the first time. Further, the effect of the momentum transfer $|t_{min}|$ on the $ϕ$-$N$ scattering length at the threshold is discussed. The obtained results not only provide important theoretical information for a more comprehensive and accurate study of the $ϕ$-$N$ scattering length, but also provide a basis for future experimental measurements of $ϕ$ meson production.
