We perform an analysis on the $\chicj$ polarization in the $\psip$ radiative transition and propose to use it to probe the mechanism of $\chicj$ decay to the baryon-antibaryon pairs in experiment. To start with the unpolarized $e$ collisions, we follow the polarization transfer to the $\chicj$ states, and estimate the degree of $\chicj$ polarization. We show that the $\llb$ pair has rich spin configurations, which are beneficial for us to study its decay asymmetry parameter and measure the helicity amplitudes. The experimental observables to reveal the $\chicj$ and $\llb$ spin polarization are presented.

中文翻译：

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极化在xcJ→ΛΛ‾中

我们对$ \ psip $辐射跃迁中的$ \ chicj $极化进行了分析，并提议使用它来探究实验中$ \ chicj $对重子-反重子对的衰减机理。从无极化开始$e$发生碰撞时，我们遵循极化转移到$ \ chicj $状态，并估计$ \ chicj $极化的程度。我们表明，$ \ llb $对具有丰富的自旋构型，这对我们研究其衰减不对称参数和测量螺旋度幅值很有帮助。给出了揭示$ \ chicj $和$ \ llb $自旋极化的实验可观察物。