A hypothesis is proposed herein, suggesting that a pion-nuclear resonance may be observed in the $\alpha+d\to{}^6\mathrm{Li}(3.563)+\pi^0$ reaction. The resonance has a $\pi NN\alpha$ structure, containing $\alpha NN$ and $\pi NN$ subsystems. The former corresponds to the $A=6$ isotriplet $^6\mathrm{He}_\text{g.s.}$, $^6\mathrm{Li}(3.563)$, $^6\mathrm{Be}_\text{g.s.}$, whereas the latter is a hypothetical $NN$-decoupled dibaryon. We propose an experiment to search for this resonance using the $^7\mathrm{Li}(p,d)$ reaction.

中文翻译：

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实验寻找π介子和轻核共振的可行性

本文提出了一个假设，表明在 $\alpha+d\to{}^6\mathrm{Li}(3.563)+\pi^0$ 反应中可以观察到π-核共振。共振具有$\pi NN\alpha$ 结构，包含$\alpha NN$ 和$\pi NN$ 子系统。前者对应$A=6$ isotriplet $^6\mathrm{He}_\text{gs}$, $^6\mathrm{Li}(3.563)$, $^6\mathrm{Be}_\ text{gs}$，而后者是假设的 $NN$-解耦二重子。我们建议使用 $^7\mathrm{Li}(p,d)$ 反应来寻找这种共振的实验。