The tensor analyzing power component, $T_{20}$, of the $\gamma \overrightarrow{d}\to {\pi }^{0}d$ process in the photon energy range from 200 to 400 MeV is investigated. This work is motivated by the most recent and unique measurements from the VEPP-3 electron storage ring at the Budker Institute of Nuclear Physics in Novosibirsk, Russia. We point out a special sensitivity of $T_{20}$ to the elementary $\gamma N\to \pi N$ amplitude and to the realistic NN potential model adopted for the deuteron wave function at backward pion angles, especially in the region $90°<\theta <150°$. The estimated results for $T_{20}$ are compared with the experimental data from VEPP-3 and a satisfactory agreement is obtained at incident photon energies below 375 MeV. At higher photon energies and extreme backward pion angles, the estimated results of $T_{20}$ considerably underestimate the data.

张量分析功率分量， ${Ť}_{20}$的 $\gamma \overrightarrow{d}\to {\pi }^{0}d$研究了光子能量在200到400 MeV之间的过程。这项工作的动力来自俄罗斯新西伯利亚Budker核物理研究所VEPP-3电子存储环的最新，独特的测量结果。我们指出了${Ť}_{20}$ 到小学 $\gamma ñ\to \pi ñ$氘波函数的振幅和逼真的NN势模型，后向pion角，尤其是在该区域$90°<\theta <150°$。的估计结果${Ť}_{20}$将其与VEPP-3的实验数据进行比较，并且在入射光子能量低于375 MeV时获得了令人满意的协议。在较高的光子能量和极端的后向介子角下，${Ť}_{20}$ 大大低估了数据。