We employ the flavor SU(3) symmetry to analyze semileptonic decays of anti-triplet charmed baryons (${\mathrm{\Lambda }}_c^{+},{\mathrm{\Xi }}_c^{+,0}$) and find that the experimental data on $\mathcal{B}({\mathrm{\Lambda }}_c\to \mathrm{\Lambda }{\ell }^{+}{\nu }_{\ell })$ implies $\mathcal{B}({\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{e}^{+}{\nu }_e)=(4.10\pm 0.46)\text{\%}$ and $\mathcal{B}({\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{\mu }^{+}{\nu }_{\mu })=(3.98\pm 0.57)\text{\%}$. When this prediction is confronted with recent experimental results from Belle collaboration $\mathcal{B}({\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{e}^{+}{\nu }_e)=(1.31\pm 0.04\pm 0.07\pm 0.38)\text{\%}$ and $\mathcal{B}({\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{\mu }^{+}{\nu }_{\mu })=(1.27\pm 0.06\pm 0.10\pm 0.37)\text{\%}$, it is found that the SU(3) symmetry is severely broken. We then consider the generic SU(3) breaking effects both in decay amplitudes and the mixing effect between the anti-triplet and sextet charmed baryons. We find that the pertinent data can be accommodated in different scenarios but the breaking effects are inevitably large. In some interesting scenarios, we also explore the testable implications in these scenarios which can be stringently tested with more data become available. Similar analyses are carried out for the semileptonic decays of anti-triplet beauty baryons to octet baryons and anti-triplet charmed baryons. The validity of SU(3) for these decays can also be examined when data become available.

我们采用风味 SU(3) 对称性来分析反三重子魅惑重子的半轻衰变（${\mathrm{\Lambda }}_C^{+},{\mathrm{\Xi }}_C^{+,0}$) 并发现实验数据 $\mathcal{乙}({\mathrm{\Lambda }}_C\to \mathrm{\Lambda }{\ell }^{+}{\nu }_{\ell })$ 暗示 $\mathcal{乙}({\mathrm{\Xi }}_C^0\to {\mathrm{\Xi }}^{-}{\mathrm{电子}}^{+}{\nu }_{\mathrm{电子}})=(4.10\pm 0.46)\text{\%}$ 和 $\mathcal{乙}({\mathrm{\Xi }}_C^0\to {\mathrm{\Xi }}^{-}{\mu }^{+}{\nu }_{\mu })=(3.98\pm 0.57)\text{\%}$. 当这个预测与 Belle 合作的最新实验结果面对时$\mathcal{乙}({\mathrm{\Xi }}_C^0\to {\mathrm{\Xi }}^{-}{\mathrm{电子}}^{+}{\nu }_{\mathrm{电子}})=(1.31\pm 0.04\pm 0.07\pm 0.38)\text{\%}$ 和 $\mathcal{乙}({\mathrm{\Xi }}_C^0\to {\mathrm{\Xi }}^{-}{\mu }^{+}{\nu }_{\mu })=(1.27\pm 0.06\pm 0.10\pm 0.37)\text{\%}$，发现 SU(3) 对称性严重破缺。然后，我们考虑了衰减幅度中的通用 SU(3) 破坏效应以及反三重态和六重态魅惑重子之间的混合效应。我们发现相关数据可以适应不同的场景，但破坏效果不可避免地很大。在一些有趣的场景中，我们还探索了这些场景中的可测试含义，这些含义可以在更多数据可用的情况下进行严格测试。对反三重态美重子到八位态重子和反三重态迷人重子的半轻子衰变也进行了类似的分析。当数据可用时，也可以检查 SU(3) 对这些衰减的有效性。