X17：一种新的力量，还是一个硬$γ+γ$过程的证据？
X17: A new force, or evidence for a hard $γ+γ$ process?
摘要：
它的调查是否“X17之谜”可能被解释为一个核衰变链和转换的两个产生的高能量的$γ$ s到一个电子-正电子对。结果表明，相应的运动学模型与实验结果吻合较好。此外，该方法的转化率是合理的。然而，假设的核链式反应在已建立的核模型中并不有利，并且不能给出对信号的同位旋结构的解释。因此，它必须得出结论，在本文中研究的过程并没有给出一个完全令人满意的解释“X17难题”。
英文摘要：
It is investigated whether the "X17 puzzle" might be explained by a nuclear decay chain and a conversion of the two resulting highly energetic $γ$s into an electron-positron pair. It is found that the corresponding kinematics fits perfectly to the experimental result. Also the conversion rates of this process are reasonable. However, the assumed nuclear chain reaction is not favored in the established nuclear models and no explanation for the isospin structure of the signal can be given. Thus, it has to be concluded that the process studied in this paper does not give a completely satisfying explanation of the "X17 puzzle".
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
